Astrophysics

Black Holes Obey Information-Emission Limits

Physics: The extreme nature of black holes means that they offer unique opportunities for testing the limits of physics laws. One law that researchers have wanted to test in this way is the one describing the maximum rate at which…

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…

Space hurricane observed in the Earth’s upper atmosphere

Physics World: A space hurricane – complete with electron “rain” – has been detected in the Earth’s upper atmosphere for the first time, an international team of researchers has reported. With the requisite plasma and magnetic fields needed for such storms…