30 May 2023
Three decades ago, we spotted the single most energetic particle ever seen, nicknamed the 'Oh-My-God particle'. Since then, we have seen many more ultra-high-energy cosmic rays – and now we are unravelling the mystery of what produces them
14 September 2022
Ex-NASA deputy administrator Lori Garver helped create the now-booming private space industry. But she says NASA is still too focused on using its moon programme to provide jobs for US workers
30 May 2022
The sudden dimming of Betelgeuse in 2019 has been puzzling astronomers ever since, but now we have nailed down the cause
28 January 2022
Astrophysicists calculate that we could use nuclear devices to stop a “planet killer” from colliding with Earth in a scenario like the one in the film
26 January 2022
A ring-shaped object 160,000 light years away may be the first intergalactic supernova remnant ever observed
29 November 2021
Evidence from asteroids shows that charged particles from the sun can turn dust grains into water – a process that could be useful for space exploration too
8 November 2021
Interstellar objects like ‘Oumuamua might pass through our solar system in such high numbers that one could have acted as a seed around which Earth grew
5 October 2021
A white dwarf about 90 light years from Earth is so cool and dim it should be about 10 billion years old – but the area it lies in is thought to contain only much younger stars
16 September 2021
From anywhere on Earth there may soon by hundreds of satellites visible in the night sky at any time of year because of satellite constellation projects such as SpaceX’s Starlink
2 September 2021
A group of experts are calling for a ban on anti-satellite weapons tests because the debris they could create may threaten other satellites or even make parts of Earth’s orbit unusable
