Planets

Celestial Bodies Celestial Events Observation Techniques Planetary Science Planets Observation Planets Planetary Alignments Observational Astronomy Meteor Showers

3 ARTICLES

last mo.

Mars Odyssey Orbiter Captures First Horizon View of Arsia Mons Through Clouds

The longest-running interplanetary mission now uses high-altitude horizon imaging to monitor seasonal shifts in Martian clouds with unprecedented detail.

5 ARTICLES

last mo.

June Sky to Stage Antares Occultation, Strawberry Moon and Key Planetary Pairings

4 ARTICLES

2mo ago

Astronomers Identify Potential Planet Nine Candidate from Archival Infrared Data

4 ARTICLES

2mo ago

May Sky Guide: Southern Hemisphere Highlights Planetary Alignments and Constellations

5 ARTICLES

2mo ago

Rare Triple Conjunction of Venus, Saturn, and Moon Captivates Skywatchers Worldwide

13 ARTICLES

2mo ago

February 2025 Sky Highlights: Venus, Jupiter, Mars, and Rare Lunar Occultations

Planets

Mars Odyssey Orbiter Captures First Horizon View of Arsia Mons Through Clouds

June Sky to Stage Antares Occultation, Strawberry Moon and Key Planetary Pairings

Astronomers Identify Potential Planet Nine Candidate from Archival Infrared Data

May Sky Guide: Southern Hemisphere Highlights Planetary Alignments and Constellations

Rare Triple Conjunction of Venus, Saturn, and Moon Captivates Skywatchers Worldwide

Venus, Saturn, and Moon to Form Rare 'Smiley Face' in Pre-Dawn Sky

Rare 'Smiley Face' Celestial Event to Grace Pre-Dawn Skies on April 25

Lyrid Meteor Shower Peaks Tonight with Up to 20 Meteors Per Hour

Rare 'Smiley Face' Planetary Alignment to Light Up the Sky on April 25

Rare Planet Parade Offers Stunning Night Sky Views This Week

Rare Seven-Planet Alignment to Grace February Night Sky

February 2025 Sky Highlights: Venus, Jupiter, Mars, and Rare Lunar Occultations