25 January 2023
A comet that last passed by Earth about 50,000 years ago is coming around again and will make its closest pass on 1 February, at which point it may be visible with the naked eye
28 April 2022
Observations of comets orbiting the star Beta Pictoris have revealed their range of sizes, which suggest that they probably form via a series of collisions just like comets that orbit the sun
30 March 2021
The interstellar comet Borisov probably formed in the presence of giant planets, but it has never been disrupted by coming near another star, making it the most pristine object ever spotted
28 October 2020
When the Philae lander arrived at comet 67P, its harpoons didn't deploy as planned and it bounced across the surface, revealing ice that is softer than the foam on coffee
13 July 2020
Comet Neowise is currently putting on an impressive show for observers in the northern hemisphere, and you should be able to see it without binoculars or a telescope
20 April 2020
The interstellar comet Borisov, which flew past Earth in December, is full of carbon monoxide ice that implies its home star is smaller and colder than our sun
12 March 2020
The Rosetta spacecraft’s measurements of comet 67P have revealed a hidden source of nitrogen that may help us learn how giant planets – and even life – formed
13 December 2019
The interstellar comet Borisov is making its closest approach to the sun and Earth, giving astronomers their best look yet
6 November 2019
The Perseid meteor shower rips through the Earth’s atmosphere in August every year
30 October 2019
Comet Borisov was recently detected entering the solar system from interstellar space, and now it seems it is carrying water from another planetary system
