8 February 2023
Very little debris should be able to survive for long in the area near Mercury, but the innermost planet seems to orbit the sun alongside a ring of dust that researchers can’t explain
5 October 2022
Scientists have found three strange asteroids that orbit relatively close to the sun – one is the closest to the sun we have ever found, and another may someday hit Earth
22 November 2021
An Earth trojan is an asteroid that shares our planet’s orbit around the sun, moving just ahead of or behind our planet – and astronomers have now discovered that we have two
9 November 2021
The NASA Insight lander has measured the frequency of shallow marsquakes and found they are more common when it is summer in Mars’s northern hemisphere
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
7 October 2021
The New Horizons spacecraft has found two pairs of unusually close asteroids in a region of the solar system called the Kuiper belt
20 August 2021
A pair of astronomers have sifted through old data to find more than half a million new asteroids, which may reveal how planets moved in the early solar system
2 July 2021
We rarely get more than a fleeting look at interstellar objects that enter our solar system, but a new spacecraft design could be quick enough to intercept them before they leave
23 April 2020
A bunch of asteroids near Jupiter and Neptune with orbits perpendicular to the plane of the solar system may have come here from a different star system
6 April 2020
An unusually round and symmetrical deposit on Mars may be the result of an impact that popped the surface of the planet, causing a volcanic eruption less than 200,000 years ago
