Planets

Astrophysics
Astrophysics Division
Galaxies
Goddard Space Flight Center
Hubble Space Telescope
Mars
Nebulae
Planetary Nebulae
Planetary Science
Planets
Spiral Galaxies
Stars
The Solar System
The Universe
In celebration of the Hubble Space Telescope’s 35 years in Earth orbit, NASA is releasing an assortment of compelling images recently taken by Hubble, stretching from the planet Mars to star-forming regions, and a neighboring galaxy.
Posted April 23, 2025
Planets
The Solar System
Our solar system has eight planets, and five officially recognized dwarf planets. Which planet is biggest? Which is smallest? What is the order of the planets as we move out from the Sun? This is a simple guide to the sizes of planets based on the equatorial diameter – or width – at the equator […]
Posted April 22, 2025
Astrophysics
Goddard Space Flight Center
James Webb Space Telescope (JWST)
Neptune
Planetary Science
Planets
Science & Research
The Solar System
Long-sought auroral glow finally emerges under Webb’s powerful gaze For the first time, NASA’s James Webb Space Telescope has captured bright auroral activity on Neptune. Auroras occur when energetic particles, often originating from the Sun, become trapped in a planet’s magnetic field and eventually strike the upper atmosphere.
Posted March 26, 2025
Astrobiology
Curiosity (Rover)
Goddard Space Flight Center
Jet Propulsion Laboratory
Mars
Mars Exploration Program
Mars Science Laboratory (MSL)
Missions
NASA Centers & Facilities
NASA Directorates
Planetary Science
Planetary Science Division
Planets
Science & Research
Science Mission Directorate
The Search for Life
The Solar System
The Universe
Researchers analyzing pulverized rock onboard NASA’s Curiosity rover have found the largest organic compounds on the Red Planet to date. The finding, published Monday in the Proceedings of the National Academy of Sciences, suggests prebiotic chemistry may have advanced further on Mars than previously observed.
Posted March 24, 2025
Planets
Skywatching
Skywatching Tips
On most nights, weather permitting, you can spot at least one bright planet in the night sky. While two or three planets are commonly visible in the hours around sunset, occasionally four or five bright planets can be seen simultaneously with the naked eye. These events, often called “planet parades” or “planetary alignments,” can generate […]
Posted February 5, 2025
Mars
Ames Research Center
Ames Research Center's Science Directorate
General
High-Tech Computing
Mars Moons
Martian Moon Exploration (MMX)
Missions
NASA Centers & Facilities
Planets
Technology
The Solar System
A NASA study using a series of supercomputer simulations reveals a potential new solution to a longstanding Martian mystery: How did Mars get its moons?
Posted November 20, 2024
Astrophysics
Astrophysics Division
Goddard Space Flight Center
Hubble Space Telescope
Mars
MAVEN (Mars Atmosphere and Volatile EvolutioN)
Missions
Planetary Science
Planets
Science Mission Directorate
The Solar System
Mars was once a very wet planet as is evident in its surface geological features. Scientists know that over the last 3 billion years, at least some water went deep underground, but what happened to the rest? Now, NASA’s Hubble Space Telescope and MAVEN (Mars Atmosphere and Volatile Evolution) missions are helping unlock that mystery. […]
Posted September 5, 2024
Astrophysics
Exoplanet Science
Exoplanets
James Webb Space Telescope (JWST)
Missions
Planetary Nebulae
Planetary Science
Planets
Science & Research
Studying Exoplanets
An international team of astronomers has used NASA’s James Webb Space Telescope to study the disk of gas and dust around a young, very low-mass star. The results reveal the largest number of carbon-containing molecules seen to date in such a disk. These findings have implications for the potential composition of any planets that might […]
Posted June 6, 2024
Astrophysics
Astrophysics Division
Goddard Space Flight Center
Hubble Space Telescope
Jupiter
Missions
Planetary Environments & Atmospheres
Planetary Science
Planets
The Solar System
The giant planet Jupiter, in all its banded glory, is revisited by NASA’s Hubble Space Telescope in these latest images, taken on January 5-6, 2024, capturing both sides of the planet. Hubble monitors Jupiter and the other outer solar system planets every year under the Outer Planet Atmospheres Legacy program (OPAL). This is because these large […]
Posted March 14, 2024
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