3I/ATLAS has now made its closest approach to the sun and Earth and is now heading back out toward the outer solar system. On ...

At the farthest edge of the Sun’s influence, the Voyager probes have stumbled into something that sounds almost mythic: a ...

In 2026, there will be journeys to the moon and Mars, new visions of the cosmos and a solar eclipse that might be worth ...

Could the icy moons of our solar system hold life beyond our planet? Keith Cooper looks at how planetary scientists plan to ...

The Voyager probes did the impossible. Witness their groundbreaking flybys of Jupiter and Saturn, where they discovered active volcanoes on a moon for the first time and revealed the secrets of the ...

Interstellar comet 3I/ATLAS made its closest approach to Earth early on Friday, Dec. 19. While it didn't come close enough to ...

With 3I/ATLAS streaking away from our planet, speculation remains as to whether the interstellar comet is alien or not.

Interstellar comet 3I/ATLAS completes its near-miss with Earth, revealing bizarre chemistry and highlighting the growing ...

A stray comet will make its closest approach to Earth this week in one last hurrah before racing back toward interstellar space. Discovered over the summer, the comet known as 3I/Atlas will pass ...

NASA spacecraft Parker Solar Probe and Europa Clipper observed interstellar comet 3I/ATLAS before its close approach to Earth. Scientists are studying the data as the comet heads toward Jupiter in 202 ...

Overview Energy plans to develop satellites collecting solar power in geosynchronous orbit and beaming it to Earth using near-infrared wide-beam lasers. Credit: Overview Energy WASHINGTON — A space ...