The European Space Agency's Solar Orbiter made its first close pass of the sun on Monday, getting as close as 48 million miles from the sun's surface. The spacecraft's first perihelion, the point in ...

3I/ATLAS is named for its status as one of three interstellar objects ever discovered in our cosmic neighborhood, as well as ...

The enigma of the intruder about the same size as Manhattan Island is making astronomers rethink what they know about cosmic ...

In a remarkable celestial event, the interstellar comet 3I/ATLAS recently made its closest approach to Mars, prompting two European robotic spacecraft to observe this cosmic wanderer. This article ...

"Thanks to Solar Orbiter, we're getting to know our star better than ever." The joint European Space Agency (ESA) and NASA Solar Orbiter spacecraft has tracked electrons traveling at nearly the speed ...

What makes 3I/ATLAS especially intriguing is that the comet might be three billion years older than our entire Solar System.

Solar Orbiter has identified the Sun’s dual “engines” for superfast electrons: explosive flares and sweeping coronal mass ejections. By catching over 300 events close to their origin, the mission has ...

Interstellar comet 3I/ATLAS is speeding past Mars this month. It moves at 193,000 mph. NASA and ESA spacecraft are preparing to observe it closely. This rare visitor from another star offers ...