A distant gas giant the size of 10 Jupiters is now the first planet outside Earth's solar system to be mapped in three ...

As more and more exoplanets are discovered throughout the galaxy, scientists find some that defy explanation—at least for ...

Kepler-452b is one of the most Earth-like planets ever discovered, orbiting a star much like our Sun. Located over 1,400 ...

The Habitable Worlds Observatory (HWO) is slated to be the next Great Observatory for the world. Its main focus has been ...

A waxing gibbous moon and the ringed planet Saturn will enlighten our sky for treat-or-treaters this Halloween.

Comprehensive guide to November 2025 night sky events, including visible planets Saturn, Jupiter, Venus and Mercury, the year’s brightest supermoon and peak meteor showers.

“If you build a map at a wavelength that water absorbs, you’ll see the water deck in the atmosphere, whereas a wavelength ...

Mercury currently appears as a bright "evening star" in the southwestern sky at sunset. Mercury will reach its greatest ...

The Hubble Space Telescope time-lapse captured footage of Jupiter, Saturn, Uranus and Neptune. Credit: SCIENCE: NASA, ESA, ...

The view of Earth from space is famously familiar—bright blue ocean, swirling gyres of white clouds, touches of terrestrial ...

Planet Y is the latest in a series of hypothetical solar system planets that scientists have proposed in recent years, all with slightly different characteristics, but collectively believed to be ...

The best time to see a shooting star is on Nov. 16 and 17, when the Leonids peak during an almost completely dark waning crescent moon. The meteors from the Leonids can be very bright and colorful ...