Unlike the typical blue-and-green depiction of Earth, this photo shows the planet in a mossy green hue, framed by a thin ...

This stunning photo was taken on January 29, 2025, from 265 miles (425 km) above the Pacific Ocean. Pettit, a seasoned ...

The center of our Milky Way galaxy is hidden from the prying eyes of optical telescopes by clouds of obscuring dust and gas. NASA's Spitzer Space Telescope's infrared cameras penetrate much of the ...

The moon, the Milky Way, Saturn, Venus, Jupiter Mars, Neptune, Uranus and comet C/2024 G3 are all visible at once in breathtaking new photos from the European Southern Observatory.

When we observe distant celestial objects, there is a possible catch: Is that star I am observing really as reddish as it ...

Today's photo of the day, “Milky Way and Haleakala,” comes to us via Todd Kozan. Send your best photos from Maui County to ...

A star has been spotted shooting away from the heart of our galaxy at around 500 kilometres per second, giving astronomers ...

BEIJING -- Chinese and foreign astronomers have unveiled the first three-dimensional map of the properties of interstellar ...

Have you ever wondered how astronomers manage to map out the Milky Way when it's so incredibly vast? One of the most powerful tools is something called 21 cm radiation. Hydrogen, the most abundant ...

Photo by Ann Ronan Pictures/Print Collector/Getty Images ... His measurements marked the end of the Great Debate about the Milky Way’s size and the nature of the nebulae. Hubble wrote about ...

Eventually, the dark umbra shadow appeared and slowly enveloped the moon, until we saw the distinctive color at totality when the moon is completely in the Earth’s umbra. Clouds really enhanced and ...