Galaxies are some of the largest clearly defined structures in space. There are trillions of them, and many are clustered…
Areas of space have wildly different temperatures depending on whether they are directly in sunlight or not. For example, temperatures…
Sometimes, when scientists measure things differently, they get different results. Whenever that happens with something as crucial to humanity's long-term…
Solar storms captured the imagination of much of the American public earlier this year when auroras were visible well south…
There's a link between Earth's ocean salinity and its climate. Salinity can have a dramatic effect on the climate of…
Well-placed observers have a rare opportunity to see an interplanetary spacecraft early next week.
The idea of terraforming Mars, making its atmosphere and environment more Earth-like for human settlement, goes back decades. During that…
Many times, it's better to flesh out technologies fully on Earth's surface before they're used in space. That is doubly…
GPS is ubiquitous on Earth. It guides everything from precision surveying to aircraft navigation. To realize our vision of lunar…
Primordial black holes formed during the earliest stages of the evolution of the universe. Their immense gravity may be playing…