The Solar System

Skywatching
Skywatching Tips
The Solar System
Mars and Mercury will cozy up together in the night sky just after sunset on November 12th. The planets will experience what is known as a conjunction, meaning they appear close together in the sky from our view (even though in real life, Mars and Mercury are well over 100 million miles apart).
Posted November 20, 2025
Comets
Heliophysics
Hubble Space Telescope
James Webb Space Telescope (JWST)
Lucy
Mars
Mars 2020
Mars Reconnaissance Orbiter (MRO)
MAVEN (Mars Atmosphere and Volatile EvolutioN)
Missions
Perseverance (Rover)
Planetary Science
Planetary Science Division
Planets
Polarimeter to Unify the Corona and Heliosphere (PUNCH)
Psyche Mission
Science & Research
Science Mission Directorate
SOHO (Solar and Heliospheric Observatory)
STEREO (Solar TErrestrial RElations Observatory)
The Solar System
The Sun
This article was updated to include the full range of dates from the SOHO image. Lee esta historia en español aquí. NASA is in the midst of an unprecedented solar system-wide observation campaign, turning its spacecraft and space telescopes to follow comet 3I/ATLAS, the third known interstellar object to pass through our solar system. Twelve […]
Posted November 19, 2025
NASA en español
Astrophysics Division
Science & Research
Science Mission Directorate
The Solar System
Read this press release in English here. La NASA ofrecerá un evento en vivo (en inglés) a las 3 p.m. EST del miércoles 19 de noviembre para compartir imágenes del cometa interestelar 3I/ATLAS captadas por varias misiones de la agencia. El evento tendrá lugar en el Centro de Vuelo Espacial Goddard de la NASA, en Greenbelt, […]
Posted November 17, 2025
Science Mission Directorate
Astrophysics Division
Science & Research
The Solar System
Lee este comunicado de prensa en español aquí. NASA will host a live event at 3 p.m. EST, Wednesday, Nov. 19, to share imagery of the interstellar comet 3I/ATLAS collected by a number of the agency’s missions. The event will take place at NASA’s Goddard Space Flight Center in Greenbelt, Maryland. Comet 3I/ATLAS, discovered by the […]
Posted November 17, 2025
Skywatching
Skywatching Tips
The Solar System
A supermoon, and meteor showers from the Draconids and Orionids A supermoon takes over the sky, the Draconid meteor shower peeks through, and the Orionid meteor shower shines bright. Skywatching Highlights Transcript What’s Up for October?
Posted September 30, 2025
Carruthers Geocorona Observatory (GLIDE)
Goddard Space Flight Center
Heliophysics
Heliophysics Division
Missions
NASA Directorates
Science & Research
Science Mission Directorate
The Solar System
The Sun
Uncategorized
This story is also available in Spanish. A new NASA mission will capture images of Earth’s invisible “halo,” the faint light given off by our planet’s outermost atmospheric layer, the exosphere, as it morphs and changes in response to the Sun. Understanding the physics of the exosphere is a key step toward forecasting dangerous conditions […]
Posted September 18, 2025
Asteroids
Goddard Space Flight Center
Lucy
Missions
NASA Centers & Facilities
NASA Directorates
Planetary Science Division
Science Mission Directorate
The Solar System
Trojan Asteroids
The IAU (International Astronomical Union), a global naming authority for celestial objects, has approved official names for features on Donaldjohanson, an asteroid NASA’s Lucy spacecraft visited on April 20.
Posted September 16, 2025
Heliophysics
Goddard Space Flight Center
Jet Propulsion Laboratory
The Solar System
It looked like the Sun was heading toward a historic lull in activity. That trend flipped in 2008, according to new research. The Sun has become increasingly active since 2008, a new NASA study shows. Solar activity is known to fluctuate in cycles of 11 years, but there are longer-term variations that can last decades. […]
Posted September 15, 2025
Astrobiology
Planets
Saturn
Saturn Moons
The Solar System
Titan
NASA research has shown that cell-like compartments called vesicles could form naturally in the lakes of Saturn’s moon Titan. Titan is the only world apart from Earth that is known to have liquid on its surface. However, Titan’s lakes and seas are not filled with water. Instead, they contain liquid hydrocarbons like ethane and methane.  […]
Posted July 14, 2025
Skywatching
Skywatching Tips
The Solar System
A.M./P.M. Planet Watching, Plus the Eagle Constellation Mars shines in the evening, and is joined briefly by Mercury. Jupiter joins Venus as the month goes on. And all month, look for Aquila the eagle. Skywatching Highlights All Month – Planet Visibility: Daily Highlights: July 1 – 7 – Mercury is relatively bright and easy to […]
Posted July 2, 2025
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