The cosmological principle predicts uniformity, and the CMB dipole reflects our 370 km/s motion that radio counts should ...

Scientists tracked interstellar comet 3I/ATLAS and found rotating jets in a rare sun-facing tail during its 2025 pass through ...

NASA’s Parker Solar Probe and Europa Clipper captured detailed observations of interstellar comet 3I/ATLAS in 2025, providing data on its trajectory, composition, and behavior as it passed through the ...

I/ATLAS has passed its closest point to Earth, meaning we will soon lose sight of it for good. Some scientists want to send a spacecraft to chase down the alien comet — or the next interstellar object ...

Interstellar comet 3I/ATLAS makes its closest approach to Earth on Dec. 19. Here's how you can track its progress both during ...

The comet—only the third known interstellar visitor to our solar system—will make its closest approach of the Earth this week ...

After less than a year in orbit, the Southwest Research Institute-built PUNCH spacecraft have made major accomplishments, ...

Even the best telescopes can’t see exoplanets. It’s all about watching for jiggly stars, blue shifts, and transits.

Moving is never easy. The packing and unpacking, having to start fresh and make new friends, all this can be challenging. Let ...

While the Voyager spacecraft are constantly traveling out of the Solar System, sometimes they are getting closer to Earth.

On July 1, 2025, the Asteroid Terrestrial-impact Last Alert System (ATLAS) telescope in Río Hurtado, Chile, announced the discovery of something truly spectacular: a mysterious object that appeared to ...