7 August 2019
Exoplanets are abundant near the galaxy's smallest stars. Observing M dwarfs could teach us more about the worlds beyond our solar system, writes Chanda Prescod-Weinstein
12 April 2019
The first black hole ever directly imaged now has been nicknamed Pōwehi, but making the name official will take some time
12 April 2019
An impact in the inner asteroid belt 22 million years ago was responsible for a meteorite shower over Turkey in 2015
9 April 2019
A dwarf planet known only as 2007 OR10 is about to get a proper name after more than a decade - and the public can help decide what we call it
4 April 2019
A piece of a planet that survived the death of its star has been spotted orbiting the stellar corpse. Planets in our solar system may look similar when the sun dies
14 March 2019
We’ve only seen one interstellar object, a rock called ‘Oumuamua that passed by in 2017, but they may be crucial to speeding up the planet-building process
18 January 2019
The last 10 years have seen amazing advances in science and technology – and stark damage to the world we live in. Like a lot of people on social media we thought we'd take a look back at the last ten years in science and 91av
22 December 2018
In 2015, NASA’s New Horizons spacecraft whizzed past Pluto. Now it is about to arrive at Ultima Thule, a tiny space rock 6.6 billion kilometres away from Earth
20 December 2018
91av has covered some strange scientific findings this year. Here is our round-up of the weirdest and wackiest
17 December 2018
Astronomers have spotted a tiny world 18 billion kilometres away, the most distant dwarf planet we’ve ever seen, and it may help us find the elusive Planet X
