Earth may have formed with enough water to fill the oceans three times
27 August 2020
A fresh look at the type of space rocks thought to have formed our planet suggests they contain more water than we thought, indicating early Earth was very wet
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Found 9 results for asteroid
Surprisingly round asteroid may actually be the smallest dwarf planet
28 October 2019
The best ever image of the asteroid Hygiea has revealed its shape for the first time and it looks as if it is round enough to be a tiny dwarf planet like Pluto
Earth may be partly made of rocks from elsewhere in the galaxy
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
Earth may be made up of rocks blasted by gusts of solar wind
6 December 2018
The area in our solar system within Mercury’s orbit is empty, which may be because solar winds threw all the rocks farther out, where they helped form planets
NASA’s deep-space mission to a $10 quintillion all-metal world
15 August 2018
The unique metal asteroid Psyche may be a space miner's fantasy – but there are better reasons to want to visit it, says mission leader Lindy Elkins-Tanton
A 300-kilometre space rock has vanished since we saw it in 1995
25 October 2017
Don’t feel so bad for losing your keys. Astronomers somehow lost a huge space rock first seen 22 years ago – and it’s far from the first cosmic object to go missing
The mysterious bright spots on Ceres may have a common origin
2 October 2017
The dwarf planet Ceres is dappled with mysterious bright splotches. Their make-up varies with location, but they may all come from the same process
Nine probes reached the outer solar system: Where are they now?
12 September 2017
Besides Cassini, eight missions have passed the asteroid belt – and several are still broadcasting from the furthest solar system and beyond
How Jupiter split the asteroid belt in two shows its great age
12 June 2017
An analysis of meteorites shows that Jupiter divided the rocks of the asteroid belt into two families within the first million years of the solar system
