In 1920, astronomers Harlow Shapley and Heber Curtis held a Great Debate. Shapley argued that the spiral nebulae were small and in the Milky Way, while Curtis took a more radical position that they ...

An event called a "ring plane crossing" will occur between Saturn and Earth on March 23, 2025, when Saturn's rings will ...

NASA’s Hubble Space Telescope captured a cameo appearance of the tiny moon Phobos on its trek around the Red Planet. This composite image, from NASA Galileo and Mars Global Survey orbiters, of Earth ...

The Hubble Space Telescope captured imagery of Jupiter and its Great Red Spot in 2023 and 2024. Credit: NASA, ESA, J.

Using the Hubble Space Telescope (HST), astronomers have observed a supermassive galactic open cluster designated Westerlund ...

Hubble’s high-resolution imagery allowed researchers to hone in on more of the Bullseye galaxy’s rings — and helped confirm ...

HH 30 is a luminous region surrounding a newborn star, or protostar. The James Webb Space Telescope helped reveals unprecedented details of it.

Scientists have discovered an impressive galaxy with Hubble Space Telescope that has six more rings than other previously known galaxies and an arrow-like feature straight through its heart.

Einstein predicted that massive objects bend light as it passes through their gravitational field. This week, a new telescope ...

And the Webb telescope — with mirrors over 21 feet across and six times the light collecting area of the Hubble Space Telescope — will be able to observe this glow from a relatively small ...

An asteroid has a small chance of hitting Earth less than eight years from now, and astronomers are enlisting the help of NASA's James Webb Space Telescope to study it. Characterized as a ...

CAPE CANAVERAL, Fla. (AP) — Europe’s Euclid space telescope has detected a rare halo of bright light around a nearby galaxy, astronomers reported Monday. The halo, known as an Einstein ring ...