Astronomers suspect that a massive metallic cloud swirling in a nearby star system could be hiding a giant planet or dwarf ...

The views of the setting sun are just as spectacular from space as they are on Earth.

Earlier telescopes, including Hubble, revealed the Helix as a serene, eye-shaped glow. Webb presents a more intimate view, ...

An early black hole feeds too fast—yet still blasts X-rays and radio jets.

A distant Sun-like star suddenly went dark for months, stunning astronomers who quickly realized something massive was ...

Solar wind sounds poetic, but it's a very real and powerful phenomenon, connecting the Sun to every part of our solar system.

By DEREK GATOPOULOS, VASILISA STEPANENKO, and VOLODYMYR YURCHUK KYIV, Ukraine (AP) — Olena Janchuk spends another day of ...

When a solar storm strikes Earth, it can disrupt technology that's vital for our daily lives. Solar storms occur when ...

Astronomers have observed a Sun-like star dim dramatically for nearly nine months after being obscured by a vast cloud of gas and dust. A huge cloud filled with vaporized metals has been spotted ...

With an orbital period around one year, much like Earth's 13-hour transit duration, HD 137010 b tantalises as Earth 2.0.

Boston and other parts of Southern New England saw snow totals climb to nearly 2 feet after lingering snow showers fellover ...