Science ❯ Astronomy ❯ Celestial Objects

Stars

Sirius Constellations White Dwarf Stars Neutron Stars Massive Stars Regulus Spica Brown Dwarfs White Dwarfs Pleiades

Mars and Uranus Form an Unusually Close Predawn Pairing on July 4

This optical appulse will let observers use bright Mars as a guide to find the faint ice giant Uranus before sunrise.

Euclid Releases Unprecedented High-Resolution Mosaic of the Milky Way Bulge

TOI-5882 Shows Chemical Evidence It Recently Engulfed a Planet

April’s Night Sky: Venus Leads, Lyrids Peak, and the “Pink Moon” Sets Easter

Astronomers Tie Distant Star’s Chaotic Fading to Evidence of a Planetary Collision

Study Ties ASASSN-24fw’s 200-Day Fade to Ringed Brown Dwarf or Super-Jupiter

Snow Moon Peaks Sunday at 5:09 p.m. EST, With Rare Regulus Occultation to Follow

Giant Metal-Bearing Cloud Tied to Hidden Companion Explains Months-Long Dimming of Sun-Like Star

January Night Sky: Jupiter’s Opposition Leads a Busy Month for Central Europe

Hubble Spots Record-Breaking, Chaotic Planet-Forming Disk ‘Dracula’s Chivito’

‘Cold Moon’ Delivers 2025’s Final Supermoon Overnight

December Sky Watch: Supermoon on Dec. 5, Geminids Peak Dec. 13–14

Gemini South Marks 25 Years With New Butterfly Nebula Image

Closest Full Moon of 2025 Arrives Nov. 5 in Perigee Supermoon

Webb Unveils Red Spider Nebula’s Closed Lobes, Iron‑Traced Jet, and Shrouded Core

Last Chance Today to See Crescent Moon Join Six-Planet Pre-Dawn Lineup

Astronomers Likely Detect Faint Companion Star Orbiting Betelgeuse

Moon Passes Within Half-Degree of Antares in Tonight’s Sky

Unusual 44-Minute Radio and X-Ray Pulses Detected Deep in Milky Way

Astronomers Confirm Most Massive Binary White Dwarf System Destined for Explosive Future