satellites

ASAT collision

editorial | Let’s keep an open dialogue about how to protect orbiting satellites – SpaceNews

The conflict in Ukraine has highlighted political ambiguity regarding the options available to the United States to protect commercial satellites The United Nations Office for Outer Space Affairs has estimated that there are at least 8,261 satellites in orbit around the Earth. These assets, worth more than two trillion dollars, enable our national security, our …

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Satellites detect no real climate benefit from 10 years of California forest carbon offset

Satellites detect no real climate benefit from 10 years of California forest carbon offset

Redwood forests like this one in California can store large amounts of carbon, but not if cut down. Shane Coffield Many companies promising “net zero” emissions to protect the climate rely on large tracts of forests and so-called carbon offsets to achieve this goal. On paper, carbon offsets appear to balance a company’s carbon emissions: …

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How satellites, radars and drones track meteorites and help defend Earth's asteroids

How satellites, radars and drones track meteorites and help defend Earth’s asteroids

On July 31, 2013, a constellation of US defense satellites saw a streak of light over South Australia as a boulder from outer space streaked through Earth’s atmosphere before crashing into the ground . The impact created an explosion equivalent to approximately 220 tonnes of TNT. More than 1,500km away in Tasmania, the bang was …

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A train of SpaceX

Better space weather forecasts could have saved SpaceX Starlink satellites from solar storm

Even small solar outbursts can have massive consequences for the environment around Earth, space weather experts learned after SpaceX lost 40 brand-new satellites in February after launching them into a “mild” geomagnetic storm. In a new study, a team of researchers explain how to correct space weather forecasts in the future, in order to prevent …

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Space Force wants to launch satellites faster than anyone has ever attempted

Space Force wants to launch satellites faster than anyone has ever attempted

Firefly’s Alpha rocket delivering payloads to orbit on October 3, 2022. Image: Firefly The prospect of losing critically important satellites during the war led to “Victus Nox” – a rapid response experiment in which private Space Force partners will have to launch a satellite within 24 hours of receiving the order “go”. The concept is …

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