To quote NASA associate administrator Jim Reuter, sending crewed missions to Mars by 2040 is an "audacious goal." The challenges include the distance involved, which can take up to six months to traverse using conventional ...
Space Exploration
Feb 27, 2024
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48
A new planet starts its life in a rotating circle of gas and dust, a cradle known as a protostellar disk. My colleagues and I have used computer simulations to show that newborn gas planets in these disks are likely to have ...
Astronomy
Feb 17, 2024
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41
Astronomers used NASA's James Webb Space Telescope to image the warm dust around a nearby young star, Fomalhaut, in order to study the first asteroid belt ever seen outside of our solar system in infrared light. But to their ...
Astronomy
May 8, 2023
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423
In 2017, a mysterious comet dubbed 'Oumuamua fired the imaginations of scientists and the public alike. It was the first known visitor from outside our solar system, it had no bright coma or dust tail, like most comets, and ...
Astronomy
Mar 22, 2023
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456
Following enormous collisions, such as asteroid impacts, some amount of material from an impacted world may be ejected into space. This matter can travel vast distances and for extremely long periods of time. In theory, this ...
Astrobiology
Mar 22, 2023
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152
On a cold winter day, the warmth of the sun is welcome. Yet as humanity emits more and more greenhouse gases, the Earth's atmosphere traps more and more of the sun's energy and steadily increases the Earth's temperature. ...
Earth Sciences
Feb 8, 2023
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164
Yogi, Paddington and Winnie the Pooh, move over. There's a new bear in town. Or on Mars, anyway.
Planetary Sciences
Jan 31, 2023
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298
Understanding how dust grains form in interstellar gas could offer significant insights to astronomers and help materials scientists develop useful nanoparticles.
Planetary Sciences
Jan 13, 2023
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68
The asteroid that got smacked by a NASA spacecraft is now being trailed by thousands of miles of debris from the impact.
Planetary Sciences
Oct 4, 2022
1
166
An international team of researchers studying dust samples retrieved by the Hayabusa-2 space probe, has found that some of its dust grains are older than the solar system. In their paper published in The Astrophysical Journal ...
