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Solar System

The top news about what's going on in the cosmic neighborhood—from planet nine to the sun, and everything in between.

Latest in Solar System

Portrait of Galileo Galilei

Ultra-rare first edition book from Galileo heading to auctionUltra-rare first edition book from Galileo heading to auction

This image, taken with ESO’s Very Large Telescope (VLT), shows the supernova remnant SNR 0509-67.5. These are the expanding remains of a star that exploded hundreds of years ago in a double-detonation – the first photographic evidence that stars can die with two blasts. The data were captured with the Multi-Unit Spectroscopic Explorer (MUSE) instrument at the VLT. MUSE allows astronomers to map the distribution of different chemical elements, displayed here in different colours. Calcium is shown in blue, and it is arranged in two concentric shells. These two layers indicate that the now-dead star exploded with a double-detonation.

Massive ‘double detonation’ spotted by astronomers for the first timeMassive ‘double detonation’ spotted by astronomers for the first time

Artist illustration of an asteroid in space

Asteroid 2024 YR4 might smash into the moonAsteroid 2024 YR4 might smash into the moon

Scanning electron micrograph of the number 15 grain of sample plate C0105-042 from Ryugu, in which djerfisherite was discovered.

Deep space asteroid sample contains unexpected ingredientDeep space asteroid sample contains unexpected ingredient

An illustration of what would happen if the Milky Way and Andromeda galaxies collide.

Milky Way and Andromeda galaxies may not collide after allMilky Way and Andromeda galaxies may not collide after all

Close up of Jupiter's storms

Jupiter was once twice as large as it is todayJupiter was once twice as large as it is today

Close up of solar flare

The first US solar storm emergency drill did not go wellThe first US solar storm emergency drill did not go well

Scientists working on space probe in lab

A dead Soviet space probe from 1972 is falling back to EarthA dead Soviet space probe from 1972 is falling back to Earth

Black and white overhead shot of Mars rover and tracks on planet

NASA satellite spies Curiosity chugging along on MarsNASA satellite spies Curiosity chugging along on Mars

Close image of sun's surface depicting sunspot

World’s largest solar telescope shows off its full force with new imageWorld’s largest solar telescope shows off its full force with new image

a spiral galaxy with red, white, and yellow stars, swirling around a bright, yellow, star in the center

Is the universe really infinite? Astrophysicists explain.Is the universe really infinite? Astrophysicists explain.

ByLauren Leffer

close up of asteroid Donaldjohanson

NASA snaps detailed photos of ‘strikingly complicated’ asteroidNASA snaps detailed photos of ‘strikingly complicated’ asteroid

a green comet in the night sky

How the sun’s motion affects meteor showersHow the sun’s motion affects meteor showers

Two planets and crescent moon form smiley face in night sky

Rare ‘smiley face’ will light up the night sky on April 25Rare ‘smiley face’ will light up the night sky on April 25

A photomosaic taken by the Curiosity Rover on April 30, 2023 at the Ubajara drill site in Gale Crater, Mars. Rock powder samples drilled here contained substantial amounts of siderite (an iron carbonate mineral). The siderite played a role in ancient carbon cycling processes that impacted conditions at the planet’s surface. Rover tracks in the foreground are 40 cm wide. (Credit: NASA/JPL-Caltech/MSSS)

Curiosity rover finds key ingredient for past life on MarsCuriosity rover finds key ingredient for past life on Mars

An illustration of what the aurora might have looked like during a polar reversal about 41,000 years ago. The green glow of an aurora is much further south than we see it today.

Sunscreen may have kept ancient humans alive during a polar reversalSunscreen may have kept ancient humans alive during a polar reversal

Jared Isaacman speaking at congressional hearing

NASA nominee: ‘We will prioritize sending astronauts to Mars’NASA nominee: ‘We will prioritize sending astronauts to Mars’

Lunar rover prototype in parking lot

All-terrain space truck hopes to drive astronauts on the moonAll-terrain space truck hopes to drive astronauts on the moon

This Hubble image shows Uranus and dynamic aurora activity on 10 October 2022. The centered planet is dominated by a blue hue and a large white region in the lower left. A faint ring is also visible around the planet. Fuzzy blue/purple regions hovering over the planet on the left and ride indicate the presence of aurorae

Uranus has a longer day than astronomers thoughtUranus has a longer day than astronomers thought

An illustration of a potential NASA lunar base for the Artemis missions.

Scientists want to turn moon dust into solar panelsScientists want to turn moon dust into solar panels

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