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Scientists Have Clear Evidence of Martian Atmosphere 'Sputtering'
Scientists Have Clear Evidence of Martian Atmosphere 'Sputtering'

Yahoo

time8 hours ago

  • General
  • Yahoo

Scientists Have Clear Evidence of Martian Atmosphere 'Sputtering'

For the first time, scientists have caught a key driver of the ongoing erosion of the atmosphere of Mars in action. It took more than nine years' worth of satellite data, but a team led by planetary scientist Shannon Curry of the University of Colorado Boulder has finally detected unmistakable signs of atmospheric sputtering. This is, the researchers say, a crucial piece of the puzzle of how Mars lost both its atmosphere and its water. "These results provide a substantial step toward observationally establishing sputtering's role in the loss of Mars' atmosphere," the team writes in their paper, "and, hence, in determining the history of water and those implications for habitability over time." Atmospheric sputtering is thought to be one of the dominant mechanisms for atmospheric loss in the early Solar System, when the Sun was brighter and more active. It happens when ions are accelerated by the electric field of the Solar wind into the atmosphere of a body – like Mars – that is unprotected by a global magnetic field. The effect is a little bit like when a meteorite smacks into a planet: energy is transferred to the surrounding neutral medium, kicking it up in a spray. But for sputtering, some of the atmospheric atoms and molecules gain enough energy to achieve escape velocity, and off they go, flung into space on a new adventure. It's difficult to observe this process on Mars. It requires simultaneous observation of the flung neutral atoms, and either the ions that smacked into the atmosphere, or the electric field that accelerated them. It also requires simultaneous dayside and nightside observations of Mars, deep into its atmosphere. The only spacecraft with the equipment and orbital configuration to make these observations is NASA's MAVEN. The researchers carefully pored over the data collected by the spacecraft since it arrived in Mars orbit in September 2014, looking to find simultaneous observations of the solar electric field and an upper atmosphere abundance of argon – one of the sputtered particles, used as a tracer for the phenomenon. They found that, above an altitude of 350 kilometers (217 miles), argon densities vary depending on the orientation of the solar wind electric field, compared to argon densities at lower altitudes that remain consistent. The results showed that lighter isotopes of argon vary, leaving behind an excess of heavy argon – a discrepancy that is best explained by active sputtering. This is supported by observations of a solar storm, the outflows of which arrived at Mars in January 2016. During this time, the evidence of sputtering became significantly more pronounced. Not only does this support the team's finding that argon density variations at high Martian altitudes are the result of sputtering, it demonstrates what conditions may have been like billions of years ago, when the Sun was younger and rowdier, undergoing more frequent storm activity. "We find that atmospheric sputtering today is over four times higher than previous predictions and that a solar storm can substantially increase the sputtered yield," the researchers write. "Our results confirm that sputtering is occurring on present-day Mars and could have been the main pathway for atmospheric escape at Mars during the early epochs of our Solar System when the solar activity and extreme ultraviolet intensities were much higher." The results have been published in Science Advances. Chance X-Ray Discovery Reveals Mystery Object 15,000 Light Years Away SpaceX Starship's Latest Test Ends in Destruction Over Indian Ocean Star Caught Orbiting Inside Another Star in Bizarre First

Explosives stock up 62% so far in CY25, outruns market for 5th year in row
Explosives stock up 62% so far in CY25, outruns market for 5th year in row

Business Standard

time3 days ago

  • Business
  • Business Standard

Explosives stock up 62% so far in CY25, outruns market for 5th year in row

Solar Industries India share price movement: Solar Industries India share price hit a new high of ₹15,917.20; gaining 4 per cent on the BSE in Monday's intraday trade, on a healthy growth outlook. Thus far in the month of May 2025, Solar Industries stock price has rallied 21 per cent. Since March, the stock of India's largest manufacturer of industrial explosives has zoomed 83 per cent from a level of ₹8,692.60. Thus far in calendar year 2025 (CY25), Solar Industries shares have soared 62 per cent as compared to 5 per cent rise in the BSE Sensex. Notably, in the past four straight calendar years, between 2021 and 2024, Solar Industries shares outperformed the market. In CY21, the stock more-than-doubled, zooming 122 per cent, while it surged 82 per cent in CY22. Solar Industries stock gained 53 per cent in CY23, and 46 per cent in CY24. Follow Latest Stock Market Updates Today LIVE Solar Industries Q4 results Solar Industries achieved the highest-ever quarterly earnings before interest, taxes, depreciation and amortisation (Ebitda) and profit after tax (PAT) at ₹546 crore and ₹371 crore, respectively, registering a growth of 47 per cent and 42 per cent year-on-year (Y-o-Y) in Q4FY25. The company also logged the highest-ever yearly Ebitda and PAT at ₹2,031 crore and ₹1,288 crore in FY25, registering a robust growth of 44 per cent and 47 per cent, respectively. The company achieved around 27 per cent Ebitda margin, which was more than its annual guidance. Solar's international business is gaining good momentum and as a result, registered an 18 per cent Y-o-Y growth. Solar's ability to expand its global footprint and forging strong relationships with its customers as a trusted partner underscores the company's strength in identifying and capitalising on global opportunities. Strong Order Book Position The defence sector revenue increased from a small base of ₹517 crore to ₹1,355 crore, showing a growth of 162 per cent. According to the management, years of strategic efforts in building state-of-the-art facilities, developing a wide range of products, and qualifying products across the customers has positioned Solar Industries as a strong player in defence in the global market. This is reflected in the substantial increase in the company's order book to over ₹15,000 crore, including a landmark order of ₹6,084 crore for Pinaka rockets and contracts of around ₹8,500 crore from international markets. Aligned with India's Atmanirbhar Bharat initiative, Solar has signed a ₹12,700-crore MoU with the Government of Maharashtra to invest in defence and aerospace over the next decade. Now, Solar is entering FY26 on a strong footing, driven by growth of 15 per cent to 20 per cent from the explosive sector and a robust target to surpass ₹3,000 crore from defence. Supported by this momentum, the management said the company is targeting total revenues of ₹10,000 crore in FY26. ALSO READ | GE Vernova T&D India freezes in 10% upper limit today; key details inside Strong growth expected in defence segment Defence remains the fastest growing segment for the company (revenue CAGR 68 per cent over FY21-25), led by strong order inflows, healthy execution and focus on continuously expanding portfolio. With an order backlog of ~₹15,200 crore (11.2x FY25 defence revenue) along with a robust pipeline, ICICI Securities believes that there is a strong growth visibility in this segment. The company anticipates huge opportunity for its defence products across global markets and expects defence revenue at ₹8,000 crore in the next 4-5 years (40 per cent plus CAGR). Solar Industries has planned a capex of ₹2,500 crore for FY26 with a focus on further expansion of product portfolio. The company had also signed a MoU with the Government of Maharashtra to initiate the Anchor Mega Defence & Aerospace Project in Nagpur with an investment of around ₹12,700 crore (over the next 10 years), aimed at enhancing defence products like Drones, UAVs, Counter Drone systems, energetic materials, New Generation Explosives, and new Military transport Aircraft. The brokerage firm estimates defence segment revenue share to increase substantially to 31 per cent by FY27E (from 18 per cent in FY25). With a market leading share of ~25 per cent in the domestic industrial explosives market, analysts at the brokerage firm believe that the company is well poised to grow steadily led by healthy demand prospects from segments like mining, housing and infrastructure. The company witnessed some recovery in the explosives segment during FY25, led by 7 per cent volume growth with improvement in realisation. With an order backlog of over ₹1800 crore in explosives and stable raw material prices, the brokerage firm expects ~15 per cent revenue CAGR in this segment over FY25- 27E. In the exports/overseas segment also, analysts expect a further recovery over FY26-27E, led by rising exports inflows with further sizable opportunities. ICICI Securities rating & price target on Solar Industries Analysts at the brokerage firm believe Solar Industries is well positioned to witness healthy growth in the coming period, led by strong sector tailwinds. "We estimate revenue & PAT to grow at ~26 per cent & ~31 per cent CAGR respectively over FY25-27E," analysts said. The brokerage firm recommended a 'Buy' rating on Solar Industries with a share price target of ₹16,310 (based on 72x P/E on FY27E EPS). ALSO READ | JK Cement shares hit life-high after Q4 results; stock up 10% today About Solar Industries Solar Industries India, along with its subsidiaries, manufactures bulk explosives, packaged explosives and initiating systems, which find application in the mining, infrastructure and construction industries. The Group forayed into the defence sector in 2010 and diversified into the manufacturing of propellants for missiles and rockets, warheads and warhead explosives. At present, there are 32 manufacturing plants across nine states in India, in addition to seven overseas units in Zambia, Ghana, Nigeria, Turkey, South Africa, Tanzania and Indonesia.

Scientists Intrigued by Strange Behavior of Distant Planet
Scientists Intrigued by Strange Behavior of Distant Planet

Yahoo

time3 days ago

  • Science
  • Yahoo

Scientists Intrigued by Strange Behavior of Distant Planet

A team of astronomers observed a confused exoplanet orbiting its two parent stars in a highly unusual way. As New Scientist reports, the planet, which was first discovered in 2004, is located in a system called Nu Octantis 72 light-years away, and is twice the size of Jupiter. After it was spotted, some physicists thought its mere existence was impossible due to its extremely close proximity to its twin stars. But according to a new paper published in the journal Nature, an international team of researchers is proposing a wild new theory to explain how the planet could exist while also having such an extremely tight orbit. They propose that one of the stars and the planet orbit the second star in two opposite directions. In other words, the planet is retrograde, or orbiting the star in reverse. "The existence of this planet has been controversial, because there were no observational precedents and we expect planets to form in prograde orbit if they form at the same time as the stars," coauthor and University of Hong Kong professor Man Hoi Lee told IFLScience. To make matters even more unusual, the researchers propose that the planet's orbit is sandwiched between the two stars, forcing it to thread the needle during each orbit. It's an erratic dance that highlights how much there's still to learn about the complex orbital mechanics of multi-star systems. "It invites scientists to consider a wider range of star and planet scenarios regarding both formation and evolution," University of Texas at Arlington professor Manfred Cuntz, who was not involved in the research, told New Scientist. One of the system's stars is a white dwarf, indicating it's nearing the end of its life cycle and making Nu Octantis an even more exotic outlier. The scientists estimate that the system was formed 2.9 billion years ago. However, the planet came to be much later. The researchers propose that it either used to orbit both stars, and changed to its unusual trajectory after one of the stars turned into a white dwarf, or it accreted its considerable mass from said white dwarf. But more research is needed before they can develop a more accurate picture of how the planet evolved. "Observations of other planets in tight binary systems with late-stage or post-main- sequence stellar components will provide additional clues for us to better understand the formation and dynamical evolution of planetary systems," the team wrote in its paper. The researchers are already excited to get a closer glimpse of a similar binary star system, such as HD 59686, which also hosts an enormous gas giant with six times the mass of Jupiter. More on binary star systems: Alpha Centauri Sending Stream of Objects Into Our Solar System, Scientists Propose

Solar Industries shares gain 5% on Q4 results, dividend call; details here
Solar Industries shares gain 5% on Q4 results, dividend call; details here

Business Standard

time21-05-2025

  • Business
  • Business Standard

Solar Industries shares gain 5% on Q4 results, dividend call; details here

Solar Industries India shares price: Shares of Solar Industries India were buzzing in trade on the bourses on Wednesday, May 21, 2025. The company's share price climbed 4.52 per cent to ₹14,100 per share on the National Stock Exchange (NSE) during the intra-day deals on Wednesday. The northward movement in Solar Industries India's share price came on back of company's announcements of its financial results for the fourth quarter of 2024-25 (Q4FY25), as well as a dividend reward for its shareholders. Catch Stock Market Updates Today LIVE During Q4FY25, the company's profit after tax (PAT) climbed 42 per cent year-on-year (Y-o-Y) to ₹346 crore from ₹243 crore reported in the corresponding quarter of the previous fiscal year (Q4FY24), Solar Industries India said in an exchange filing. The company's revenue rose to ₹2167 crore in Q4FY25, up 35 per cent Y-o-Y from ₹1611 crore reported in Q4FY24. During the quarter under review, Solar Industries India's Earnings before income tax, depreciation, and amortisation (Ebitda) stood at ₹546 crore, up 47 per cent Y-o-Y from ₹371 crore reported in Q4FY24. The company's Ebitda margin improved by 215 bps Y-o-Y to 25.21 per cent from 23.06 per cent. For FY25, the company's profit jumped 47 per cent Y-o-Y to ₹1288 crore from ₹875 crore. The company's revenue jumped 24 per cent Y-o-Y to ₹7540 crore from ₹6070 crore. Solar Industries India's Ebitda rose 44 per cent Y-o-Y in FY25 to ₹2031 crore from ₹1414 crore reported in FY24. ALSO READ | Management Commentary Presenting the quarterly and yearly results, Manish Nuwal, Managing Director & CEO of Solar Industries, said, "We are happy to report the highest-ever sales for the quarter and year. We have also achieved the highest-ever quarterly Ebitda and PAT. We achieved around 27 per cent Ebitda margin, which is more than our annual guidance." Solar's international business, Nuwal said, is gaining good momentum and, as a result, registered an 18 per cent Y-O-Y growth. Solar's ability to expand its global footprint and forge strong relationships with its customers as a trusted partner underscores the company's strength in identifying and capitalizing on global opportunities. "We are propelling Solar to the next frontier. In addition to the capex of around ₹1,200 crore in FY25, a massive plan to undertake capex of ₹2,500 crore in FY26 will unlock new opportunities, scale existing capabilities, upgrade technology, and expand the product portfolio, including advanced munitions and aerospace solutions. Aligned with India's Atmanirbhar Bharat initiative, Solar signed a ₹12,700 crore MoU with the Government of Maharashtra to invest in defence and aerospace over the next decade. Solar enters FY26 on a strong footing, driven by a growth of 15-20 per cent from the explosives sector and a robust target to surpass ₹3,000 crore from defence. Supported by this momentum, we are targeting total revenues of ₹10,000 crore in FY26. With this, the defence contribution to total revenue will cross 30 per cent, up from the current share of 18 per cent," said Nuwal. Solar Industries Dividend 2025 About Solar Industries India Solar Industries India is engaged in the manufacturing of a complete range of industrial explosives and explosive initiating devices. The company manufactures various types of packaged emulsion explosives, bulk explosives, and explosive initiating systems. The company has also forayed into the manufacturing of ammunition for military applications. Solar Industries India has the world's largest packaged explosives manufacturing facility at a single location in Nagpur, India. As of May 21, 2025, Solar Industries India has a market capitalisation of ₹1,26,134.09 crore on the NSE. Solar Industries India share price history Shares of Solar Industries India have yielded a return of 13 per cent in the last one month, 40 per cent in the last six months, and 48 per cent in the last one year. For the year-to-date, the company's shares have advanced 42 per cent. In contrast, the Nifty50 has advanced 4.2 per cent during the same period. Shares of Solar Industries India have a 52-week range of ₹14,339 - ₹7,888.25 per share on the NSE. At 1 PM on Wednesday, Solar Industries India shares were quoted at ₹13,939 per share, up 3.34 per cent from its previous close of ₹13,489 on the NSE.

Solar Industries India Limited posted highest ever yearly revenue, profits with orderbook of Rs 17000 crore in FY 2025
Solar Industries India Limited posted highest ever yearly revenue, profits with orderbook of Rs 17000 crore in FY 2025

India Gazette

time20-05-2025

  • Business
  • India Gazette

Solar Industries India Limited posted highest ever yearly revenue, profits with orderbook of Rs 17000 crore in FY 2025

New Delhi [India], May 20 (ANI): Solar Industries India Limited (SIIL) posted the highest ever yearly revenue and profits with a significant orderbook of Rs 17,000 crore in the financial year 2025, the company said in a release. Solar Industries India Limited (SIIL) registered highest ever quarterly and yearly sales at Rs 2167 crore and Rs 7540 crore. It also posted highest ever quarterly and yearly EBIDTA at Rs 546 crore and Rs 2031 crore respectively. The company has also posted highest ever defence revenue in the quarter and year at Rs 430 crore and Rs 1355 crore, as per the Solar Industries India Limited. Presenting the Quarterly and yearly results, Manish Nuwal, Managing Director and CEO of Solar Industries, shared delightedly the pivotal year where strategy, scale, and execution converged to deliver highest ever revenue and profits. 'We are happy to report the highest ever sales for the quarterly and yearly at Rs 2167 crore & Rs 7540 crore. We have also achieved the highest ever quarterly EBIDTA & PAT at Rs 546 crore & Rs 371crore registering growth of 47 per cent and 42 per cent yoy and highest ever yearly EBIDTA & PAT at Rs 2031 crore & Rs 1288 crore registering growth of 44 per cent & 47 per cent in the year FY25. We achieved around 27 per cent EBIDTA margin more than our annual guidance'. Manish highlighted 'Solar's international business is gaining good momentum and as a result registered a 18 per cent YOY growth. Solar's ability to expand its global footprint and forging strong relationship with its customers as a trusted partnet underscores company's strength in identifying and capitalizing on global opportunities. ' He further stated that,' The defence sector revenue has increased from Rs 517 crores to Rs 1355 crores showing a growth of 162 per cent. Years of strategic efforts in building state of the art facilities, developing wide range of products and qualifying products across the customers has positioned Solar as a strongdefence player in the global market. This is reflected in the substantial increase in our order book to over Rs 15,000 crores plus, including a landmark order of Rs 6,084 crores for Pinaka rockets and contracts of around Rs 8,500 crores from international markets ' The company's statement added that a historic milestone was the inauguration of a state-of-the-art loitering munition testing range and a 1230 meters UAV runway by Prime Minister Narendra Modi, a testament to Solar's growing capabilities in defence and aerospace. 'Hosting Hon'ble Prime Minister of India was a moment of immense pride, boosting morale of Solar team,' the financial statement. Manish expressed while sharing capex plans 'We are propelling Solar to the next frontier. Further to capex of around Rs 1,200 crore in FY25, a massive plan to do capex of Rs 2,500 crore in FY26 will unlock new opportunities, scaling existing capabilities, upgrading technology, and expanding the product portfolio, including advanced munitions and aerospace solutions. Aligned with India's Atmanirbhar Bharat initiative, Solar signed a Rs 12,700 crores Moll with the Government of Maharashtra to invest in defence and aerospace over the next decade.' Solar enters FY26 on a strong footing, driven by growth of 15-2 per cent from Explosives sector and a robust target to surpass Rs 3,000 crores from Defence. Supported by this momentum, the company is targeting total revenues of Rs 10,000 crores in FY26. With this Defence contribution in total revenue will be crossing 30 per cent from the current share of 18 per cent. The company has proposed a dividend of Rs 10/share for FY25 up from Rs 8.5/share in the previous year, reflecting confidence in its financial health and commitment to shareholders. (ANI)

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