Science ❯Astronomy

Planetary Characteristics

Venus Super-Earths Temperature Brightness Mass and Size Density and Gravity Mass and Temperature Rocky Planets Jupiter's Atmosphere Planetary Atmospheres Magnetic Fields Moons of Uranus Planet Types Mass and Density Density and Composition Atmospheric Phenomena Brightness of Planets Saturn Orbital Periods Planet Visibility Bright Planets Temperature Variations Albedo Planetary Orbits Habitability Criteria Planets vs Stars Orbital Patterns Planetary Colors Planetary Features Gas Giants Venus Characteristics Orbit Rotation Period Rotation Rates Surface Conditions Planet Composition Planetary Positions Mass of Planets Size and Volume Rings of Saturn Planetary Geology

Sunrise Planet Parade Builds Ahead of Venus–Jupiter Conjunction

Mercury’s rise tomorrow morning paves the way for the near-perfect 0.9° Venus–Jupiter pairing at dawn.

NASA to Target Super-Earth TOI-1846 b With James Webb Space Telescope

Study Reveals Jupiter Was Once Twice Its Current Size with a Magnetic Field 50 Times Stronger

Astronomers Confirm Super-Earths Are Common in Distant Orbits Across the Milky Way

Uranus’ Day Found to Be 28 Seconds Longer Than Previously Measured

Hubble Reveals Uranus’ Day Is 28 Seconds Longer Than Previously Measured

Venus to Align Between Earth and Sun During Rare Astronomical Event

Astronomers Confirm Four Rocky Planets Orbiting Barnard's Star

Rare Seven-Planet Alignment Visible This Week

Rare Planetary Alignment Visible in February Night Sky

February Offers Rare Chance to View Seven Planets in Night Sky

Astronomers Detect Record-Breaking Supersonic Winds on Exoplanet WASP-127b

Six-Planet Alignment Dazzles Night Sky in January 2025

Hubble Captures Stunning Ultraviolet View of Jupiter

Discovery of WASP-132 System Challenges Hot Jupiter Isolation Theory

Astronomers Discover Youngest Known Transiting Planet at 3 Million Years Old

Astronomers Discover Youngest Transiting Exoplanet Ever Observed

Hubble Reveals Jupiter's Great Red Spot Is Oscillating Unpredictably

Astronomers Discover Uniquely Inflated Exoplanet with Asymmetric Atmosphere

BepiColombo Captures Unprecedented Mercury Flyby Images