As the four-person crew of Artemis II prepares to launch on a historic mission around the moon as soon as February, some experts are worried about the Orion spacecraft’s heat shield.
Mars may have been a "blue planet" with an ocean the size of today's Arctic Ocean, a new study suggests.
The findings are a big clue as to why the far and near hemispheres of the moon look so different.
A new study published as a pre-peer-reviewed paper on arXiv and accepted for publication in Astronomy & Astrophysics suggests ...
What we see is sobering. In our simulations, electrodes can fracture during the deep freeze of a lunar night. Under direct ...
The object dubbed Earth's "second moon" is actually a quasi-satellite that's accompanied the planet since 1957 — not a true ...