Science ❯ Astronomy

Planets

Jupiter Saturn Venus Mars Mercury Solar System Gas Giants Uranus Visibility Visible Planets

Astronomers Measure Mass of a Free-Floating Planet for the First Time

A two-hour offset between Earth and Gaia views of a microlensing event provided the parallax to pin down its distance and mass.

Reanalysis Points to Solar Storm as Cause of Uranus’s 1986 Radiation Belt Spike

Saturn's Rings Seem to Vanish in Rare Edge-On Alignment on Nov. 23–24

Saturn’s Rings Nearly Vanish This Weekend as Earth Hits Edge-On View

Leonids Peak Before Dawn With Best Views Early Nov. 18

Mercury Enters Sagittarius, Setting Up Blunter Talk Before Nov. 9 Retrograde

Last Quarter Moon Draws Close to Jupiter Overnight in Easy Sky Show

Rogue Planet Caught in Record Growth Spurt, Accreting Like a Young Star

Rogue Planet Cha 1107‑7626 Caught in Record Growth Spurt at 6 Billion Tons per Second

Free-Floating Planet Registers Record Growth Burst Spotted by ESO’s VLT

October Night Sky: Saturn Takes the Evening Stage as Ceres, Comets and Orionids Highlight the Month

New HANRAG Preprint Targets Multi‑hop Noise as RAG Guides Proliferate

Andromeda Galaxy Team Wins 2025 Astronomy Photographer of the Year as London Exhibition Opens

Apple Adds Interactive Jupiter Environment to Vision Pro in VisionOS 26 RC

Six-Planet Parade Peaks Before Dawn Aug. 24–25 as Mercury Fades From View

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

Six-Planet Parade Visible Before Dawn as Mercury Hits Greatest Elongation

Crescent Moon Joins Ongoing Six-Planet Pre-Dawn Parade

Six-Planet Parade Continues as Mercury Rises and Moon Approaches

Venus and Jupiter Align Vertically on 13 August, Prompting New UFO Reports