Planets

Uranus (left) and Neptune (right)

Why Neptune Appears Bluer Than Its Cousin Uranus

Though the solar system’s two outermost planets are very similar, their color is a puzzling difference

InSight's final selfie, taken in April 2022.

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Dusty InSight Mars Lander Takes Its Final Selfie

The Red Planet probe will likely stop operating sometime later this year

Pluto's icy volcanic region, with possible past eruptions marked in blue.

Pluto's Hidden Ice Volcanoes Hint at the Possibility of Life

The discovery suggests the dwarf planet may be harboring a subsurface liquid ocean

Researchers turned to Mercury for the possibility of impact-born diamonds because previous surveys of the planet and molten rock found that the surface may have fragments of graphite, a carbon-rich mineral.

Mercury's Cratered Crust May Hold Glittering Gemstones

Fragments of a graphite shell from the planet's past and a series of violent meteorite impacts may have combined to form sparkling diamonds

An illustration of the six-wheeled rover, which has a drill and onboard instruments to sample and analyze the Martian surface. 

Europe's Mars Rover Unlikely to Launch in 2022 Due to Russian Invasion

The robot designed to search for traces of life on the Red Planet was originally scheduled to ride a Russian rocket into to space this fall

The ice giants appear blue because of the methane in their atmospheres. Methane reflects blue light and absorbs red light. Pictured: Uranus on the left and Neptune on the right.

Why Twin-Like Ice Giants Uranus and Neptune Are Different Shades of Blue

A whiteish layer of haze forms where methane reacts with sunlight

An artist’s conception of the James Webb Space Telescope at work.

The James Webb Telescope Successfully Launches Into Space

A rocket carrying the $10 billion dollar invention blasted off Christmas morning and powered up as planned, providing astronomers with a long-awaited gift

Jovian moon Ganymede, is the only moon known to have a magnetic field. On its most recent flyby of the moon, the JunoCam imager on NASA's Juno spacecraft snapped the most detailed images of Ganymede on June 7, 2021.

 

Jupiter's Moon Ganymede Sounds Like Dial-Up Internet

The 50-second audio track was pieced together from data collected by NASA's Juno Spacecraft

While the nebula can be observed in visible light (as seen in the image above), it gets its name from how brightly it also appears when viewed in infrared wavelengths of light.
 

Hidden Within This Wispy, Butterfly Wing–Shaped Nebula, a Star Is Born

The image of a budding celestial body reveals clues as to what happens before it becomes a full-fledged star

Astronomers and planetary scientists interested in understanding how often or when the weather patterns occur use past and present images to compare how the planets change over time.

Say Cheese, Outer Planets! Hubble Captures New Images of Jupiter, Saturn, Uranus and Neptune

New images of the solar system's giants give astronomers insight into atmospheric activity on other worlds

One reader wonders why more flowers and fruits aren't blue-hued.

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Why Are So Few Flowers and Fruits Blue? And More Questions From Our Readers

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A rainbow appears after a storm on the faux-Martian habitat.

Inside the Experiment to Create Mars on Earth

A hostile landscape. Cramped quarters. Dehydrated food. A photographer takes part in an attempt to live on another planet

An illustration of Saturn and its "fuzzy" core.

Saturn's Seismic Activity Makes Waves in Its Iconic Rings

Scientists uncover new insight into the planet's core based on observations of its rippling rings

The ascent module (pictured) may still be orbiting the moon—or it exploded. According to the new calculations, the space junk never crash-landed onto the moon's surface as previously expected.

Part of the Apollo 11 Spacecraft May Still Be Orbiting the Moon

New research suggests the 'Eagle' ascent stage either exploded in space or remains in orbit—but it likely didn't crash land back on the lunar surface

After about a month of darkness, Hubble is back online and already collection impressive scientific data.

Retired NASA Engineers Return to Fix Hubble Telescope

The repaired space computer is back online and already beaming spectacular images of distant galaxies back to Earth

Jupiter and its largest moon Ganymede are shown in this image. Ganymede is slightly larger than the planet Mercury. Meanwhile, Jupiter's new 80th moon is much smaller, likely only a few dozen miles in diameter.

Amateur Astronomer Discovers New Moon Orbiting Jupiter

Kai Ly spotted the unnamed satellite using telescope images from 2003

People lie on the ground to view the Perseid meteor shower in Rocky Mountain National Park in Colorado at an astronomy night event on August 12, 2018.

How to Watch the Perseid Meteor Shower

Known for its 'fireball' meteors, the Perseid shower began on July 14 and will peak in mid-August

Palomar 5 is located about 80,000 light-years from Earth in the Milky Way’s inner halo.

Scientists Discover Bevy of Black Holes in Our Own Galaxy

Palomar 5's unusual cluster may explain some of the Milky Way's star streams and other phenomena

An artist's rendering of the Earth and sun seen from space. Astronomers on Earth can detect other worlds when far away stars flicker as an orbiting planet passes in front of them, partly blocking our view. New research asks how many alien worlds might have been able to detect Earth in this way.

New Research

If Aliens Exist in These 1,700 Solar Systems, They Can Probably See Earth

Hypothetical alien astronomers orbiting these stars could have seen the sun’s light flicker as Earth passed in front of it

A radar image of Venus' largest block of crust, located in the planet's lowlands and identified by the authors of a new paper.

New Research

Venus May Still Be Geologically Active

Radar images of the planet’s surface suggest large sections of its crust appear to have moved in the geologically recent past

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