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SATELLITE LIGHT POLLUTION
In 1993, Russia reflected sunlight from space. Now, a California startup wants to turn the night sky into a marketplace for on-demand sunlight from orbitA California startup is developing satellites that could redirect sunlight to Earth after sunset, creating what it calls “sunlight on deman...- Earth’s forests lost 60% of their canopy during ancient global warming—could it happen again?Ancient forests endured extreme global warming over 56 million years ago. This warming event caused a significant loss of forest canopy cov...
- In 2000, NASA's MISR used 9 cameras aboard Terra to study clouds, winds and aerosols. 1 year later, scientists showed it could measure cloud heights to within 400 meters worldwide, opening new possibilities for meteorologyNASA’s MISR instrument is giving scientists a different way to study Earth’s atmosphere. Its nine cameras view the planet from different an...
- Will the Northern Lights appear by Friday? Powerful solar flare sparks new hopesA powerful solar flare has erupted, sending a cloud of material towards Earth. Scientists are monitoring this event for potential geomagnet...
- Earlier this year, a California startup received approval to launch a 59-foot mirror into orbit. Two years later, the demonstration could redirect sunlight onto chosen points on Earth, allowing crews to keep working after darkA California startup just got FCC approval to test a 59-foot mirror satellite in orbit. The spacecraft, named Eärendil-1, will catch sunlig...
- The stars are still there, we just can't see them anymore as artificial light is now changing that view at an alarming pace, creating a brightening night that future generations may barely recognizeArtificial light pollution erases stars twice as fast as satellites measured. A child seeing 250 stars today may see fewer than 100 by age ...
- US agency proposes accelerated approval for commercial space missionsThe FAA is proposing new rules to speed up commercial space mission approvals. These changes aim to simplify licensing by waiving environme...
- In 1993, Russia unfolded a 20-meter mirror in orbit and swept a five-kilometer patch of artificial moonlight across EuropeRussia's ambitious Znamya project aimed to channel sunlight to Earth via mirrors in orbit. In a remarkable demonstration in 1993, the Znamy...
- NASA satellite study finds Earth's mangrove forests are making an unexpected comeback after decades of decline. But scientists warn the good news may not last foreverGlobal mangrove forests have shown a net increase between 2000 and 2020 due to restoration efforts and conservation policies. These vital c...
- A SpaceX rocket left a lithium plume in our atmosphere — researchers say this could escalateScientists have detected a plume of lithium pollution in Earth’s upper atmosphere and traced it to the re-entry of a SpaceX Falcon 9 rocket...
- Study Links outdoor artificial light exposure to increased stroke riskA recent study conducted in China involving over 28,000 adults has found a potential link between exposure to outdoor artificial light at n...
- NASA to study impact of Covid-19 on environment using satellite imagery, hopes to map user behaviour during pandemicThe results of these studies could play a major role in forming public policy.
- Coal India, Isro tie up to develop satellite-based air pollution systemCoal India has used services of satellites for monitoring land reclamation and reforestation. Satellite-based pollution monitoring system e...
- Pollution levels in Delhi and satellite towns shoot up, air quality 'severe plus' at several placesThe city received 0.3 mm rain in the past 24 hours which slightly lowered the hazardous level of air pollutants in the air. The day is fore...
- You aren’t alone Delhi, all 22 NCR districts are choking
- One third of people cannot see Milky Way due to light pollutionThe artificial brightening of night sky is profoundly altering fundamental human experience- the opportunity to view the sky above in eveni...
- Isro orbiter to scan India's air for pollutantsThe nano-satellite will monitor suspended particles and aerosols that have made the air of Delhi, Ahmedabad and Lucknow among the most poll...
- Chinese scientist proposes 6 new satellites to monitor earthGlobal change is a relatively new scientific area that developed after realisation that climate change was only one part of a larger phenom...
- Darker side of light pollutionIndia like other countries world over is falling prey to one of the lesser known, but equally grave, type of pollution caused by none other...
- Light pollution in cities blots out fainter starsThe reason behind the lack of visibility of faint stars, say astronomers, is light pollution - a phenomenon that is created because of inef...
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