Mysterious origin of Earth's water may be explained by solar wind
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
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Premium
Found 11 results for asteroid
Science with Sam: Are there volcanoes in space?
11 May 2021
From cataclysmic supervolcanos on Earth to ice plumes on Enceladus, the solar system is a wildly volcanic place. This is your guide.
Moon craters hint huge asteroids bombarded Earth 800 million years ago
21 July 2020
Craters on the moon show it was probably bombarded with asteroids about 800 million years ago, which also rained down on Earth and could have plunged the planet into an ice age
The amazing Antarctic discovery that could tell us how Earth was made
27 May 2020
Explorers trawling the polar ice have finally unearthed a trove of precious, iron-rich space rocks that might help crack the puzzle of how our planet took shape
Spacecraft reveal the mysteries of the solar system's space rocks
27 March 2019
Three spacecraft have been gathering a treasure trove of information about the solar system's space rocks, helping us understand how Earth and the other planets formed
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
Asteroid strike may have forged the oldest rocks ever found on Earth
13 August 2018
The oldest rocks ever found are over four billion years old and we don’t know how they formed – but a massive asteroid bombardment may be responsible
A tech-destroying solar flare could hit Earth within 100 years
16 October 2017
If the sun spews “superflares” as often as other stars, one could take down power systems, damage the ozone layer and destroy satellites in the next century
Super-Earths draw asteroids to other worlds, which may seed life
26 September 2017
Asteroid collisions can be destructive – just ask the dinosaurs – but they also bring key ingredients for life. Super-Earths can draw them to nearby worlds
Asteroid Florence buzzes Earth in closest fly-by since 1890
4 September 2017
A 4.4-kilometre-wide space rock whizzed past Earth on its closest orbit in over a century. This asteroid won’t get this close again until after 2500
