Former NASA astronaut Ron Garan experienced the "Overview Effect" during his time on the International Space Station, ...

Humans could have come from Mars, scientists have said. A study by Johns Hopkins University has found that alien microbes ...

It is possible that extremophile microbes lcould exist on icy moons and planets with conditions similar to subglacial waters or the ocean floor.

The company is seeking F.C.C. approval to test an idea to reflect sunlight to Earth at night, possibly powering solar panels. Critics say it could be bad for people and wildlife.

A new study has found that an asteroid NASA used for target practice a few years ago was nudged into a slightly different ...

NASA researchers explore a hybrid observatory using a space-based starshade and ground telescopes to improve direct imaging and detect hidden Earth-like exoplanets.

Space can alter more than a person’s schedule, balance, and sleep. For some astronauts, it also rewrites the way Earth itself makes sense. That was the lasting outcome for former NASA astronaut Ron ...

Chinese official calls for prioritizing Neptune orbiter mission A senior Chinese space scientist and delegate to the country’s national congress is proposing the prioritization of an unprecedented ...

Earth is absorbing more heat as the gap between incoming solar energy and outgoing radiation grows, and a joint NASA-NOAA analysis found the planet’s energy imbalance has approximately doubled from ...

While Earth experienced dazzling auroras seen as far south as Mexico, Mars faced a very different and far more intense impact.

For a brief time, "Asteroid 2024 YR4" was considered to be the most dangerous asteroid discovered in the last 20 years.

Curious Kids is a series for children of all ages. If you have a question you’d like an expert to answer, send it to CuriousKidsUS@theconversation.com. Why do we see snow on mountaintops that are ...