Science & Astronomy

Earth's magnetic field may not be heading toward a dramatic flip anytime soon, according to scientists who analyzed anomalies in the planet's invisible shield against solar wind and other radiation.

NASA's James Webb Space Telescope is gearing up to start operations this summer, and one of its many assignments will be to search for primeval black holes in the early universe.

More than 50 years since astronomers first proposed "dark matter," we have no idea what it is and nobody has directly seen it or produced it in the lab.

Mars astronauts could get a lot of science work done in 30 days on the Red Planet, even if they have to spend most of their time working to stay alive and stay healthy.

NASA's next-generation space observatory has sustained its first noticeable micrometeoroid impact less than six months after launch, but the agency isn't too concerned.

An international team of astronomers have discovered a second persistently active fast radio burst, posing questions about the nature of the mysterious phenomena.

Russia wants to restart a German black-hole searching telescope aboard a Russian satellite; the telescope was mothballed on German orders in response to Russia's invasion of Ukraine.

The largest near-infrared image of galaxies ever taken by the Hubble Space Telescope has revealed potential targets for the James Webb Space Telescope.

Because Earth is the only planet known to host life as we know it, researchers have usually focused on planetary systems similar to our own when searching for extraterrestrial life.

The Siberian tundra could disappear by the year 2500, unless greenhouse gas emissions are dramatically reduced.

An asteroid the size of three blue whales just zoomed past Earth. But don't worry, Earthlings were not at risk.

Time to get your laser blasters ready again to hunt down aliens — or at least alien galaxies.

The discovery of a neutron star emitting unusual radio signals is rewriting our understanding of these unique star systems.

The upcoming release of data by the European Gaia mission will allow astronomers to map the farthest reaches of our Milky Way galaxy and see much finer details in the galaxy's structure.

Scientists are tracing the movement of dust over Martian eons using a high-definition camera from orbit.

This fresh Hubble Space Telescope image looks like a gassy disaster unfolding deep in space.

A new simulation maps the first few seconds after the Big Bang, focusing on what scientists call the intergalactic medium, or the gas and dust between galaxies.

For hundreds of millions of years, Earth’s climate has warmed and cooled with natural fluctuations in the level of carbon dioxide (CO₂) in the atmosphere.

If aliens exist, they do exist, they might be hanging out on Dyson spheres circling the husks of sunlike stars called white dwarfs.