Remote Sensing

Lasers Could Clear Space Junk From Orbit

IEEE Spectrum: Ever since humans started launching rockets into space, the amount of junk flying around Earth has been growing, to the point where debris has damaged satellites or forced the space station to shift its orbit. Now researchers in Australia…

New material offers better angle on heat transfer

Materials Today: Materials scientists at the University of California, Los Angeles (UCLA) have developed a class of optical material that controls how heat radiation is directed from an object. Similar to the way overlapping blinds direct the angle of visible light…

X-ray emissions from Uranus are detected for the first time

Physics World: Astronomers have spotted X-ray emissions from the planet Uranus for the first time. The international team, led by William Dunn at Mullard Space Science Laboratory in the UK, discovered the signals through new analysis of data from NASA’s Chandra…

Quantum Astronomy Could Create Telescopes Hundreds of Kilometers Wide

Scientific American: A few years ago researchers using the radio-based Event Horizon Telescope (EHT) performed an extraordinary observation, the likes of which remains a dream for most other astronomers. The EHT team announced in April 2019 that it had successfully imaged…