The entire progression will be observed by the ESA’s orbiters the Mars Express and ExoMars Trace Gas Orbiter as well as NASA’s Mars Reconnaissance Orbiter, which will utilize the cutting-edge HiRISA ...

A new listing of the 50 most concerning pieces of space debris in low-Earth orbit is dominated by relics more than a quarter-century old, primarily dead rockets left to hurtle through space at the end ...

Beyond the race for scientific, commercial and military purposes, there is another space race of a more curious sort. A race to be the first to send various objects up there. But why?

3I/ATLAS, an interstellar object currently zipping through the solar system, is capturing the attention of astronomers, the public and even most of our deep space assets. Its hyperbolic orbit tells us ...

But over the summer, 3I/ATLAS, has plunged toward the inner solar system—and the fireworks show has begun in earnest. When comets get close to the sun, they develop a sparkly tail and a blooming coma, ...

An enormous asteroid is approaching Earth at 24,136 miles per hour—and will be at its closest to us in two days' time. The space rock—dubbed "2025 FA22"—is 520 feet across. On a cosmic scale, it will ...

Harvard astrophysicist Avi Loeb suggests interstellar object 3I/ATLAS could be far more massive than previously thought.

Need a refresher about 3I/ATLAS? Here's everything to know about the interstellar object, including when the latest observations will be made.

Astronomers are tracking a newly discovered interstellar visitor called 3I/ATLAS, and early research suggests it may be unusually massive.

The comet, named 3I/ATLAS, is only the third confirmed interstellar object ever seen in our solar system. That means it came from another star system entirely. At first, some speculated it could be an ...

Astronomers have discovered that asteroid 1998 KY26, the target of Japan’s Hayabusa2 extended mission, is far smaller and faster-spinning than previously thought. Astronomers have conducted a new ...