Space

The latest discoveries from space agencies and astronomers as they explore galaxies, black holes, exoplanets, and more. Also learn about night sky watching events right here on the home planet.

Latest in Space

Scientists working on space probe in lab

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

a child's drawing of a rainbow with a girl in pigtails standing inder it

Kids draw what they love about Earth Kids draw what they love about Earth

By Popular Science Team

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

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

Photo of long barrel of NASA's gas gun in warehouse

Watch high-powered gas guns blast space habitat (for science) Watch high-powered gas guns blast space habitat (for science)

Close image of sun's surface depicting sunspot

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

a blue, purple, and white galaxy whose clouds of dust and matter appear shaped like a butterfly

5 dazzling interstellar images to celebrate Hubble’s 35th birthday 5 dazzling interstellar images to celebrate Hubble’s 35th birthday

By Laura Baisas

Illustration of planet disintegrating during orbit around star

Astronomers discover hellscape world crumbling into its host sun Astronomers discover hellscape world crumbling into its host sun

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.

By Lauren Leffer

close up of asteroid Donaldjohanson

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

a green comet in the night sky

How the sun’s motion affects meteor showers How 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 25 Rare ‘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 Mars Curiosity rover finds key ingredient for past life on Mars

Red tinged spiral galaxy made with infrared wavelengths

The universe isn’t just expanding—it may be spinning The universe isn’t just expanding—it may be spinning

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

By Laura Baisas

This is an artist’s impression of the exoplanet 2M1510 (AB) b’s unusual orbit around its host stars, a pair of brown dwarfs. The newly discovered planet has a polar orbit, which is perpendicular to the plane in which the two stars are travelling. Polar planets around single stars had been found before, as well as polar discs of gas and dust capable of forming planets around binary stars. But thanks to ESO’s Very Large Telescope (VLT) this is the first time we have strong evidence that such a planet actually exists in a polar orbit around two stars. The two brown dwarfs appear as a single source in the sky, but astronomers know there are two of them because they periodically eclipse each other. Using the UVES spectrograph on the VLT they measured their orbital speed, and noticed that their orbits change over time. After carefully ruling out other explanations, they concluded that the gravitational tug of a planet in a polar orbit was the only way to explain the motion of the brown dwarfs.

Exoplanet with two ‘suns’ is even more unique than Tatooine Exoplanet with two ‘suns’ is even more unique than Tatooine

Earth's oceans seen from space

How did water end up on Earth? New evidence upends long-held theory. How did water end up on Earth? New evidence upends long-held theory.

A bright disc of purplish, white and gold lines surrounds a black ellipse-shaped area, that looks like a hole in space. A ball of shining material pierces through the disc; an eruption of bright white-to-gold rays encircles the small hole in the disc provoked by the passage of the shining ball

For the first time, astronomers watch a black hole ‘wake up’ in real-time For the first time, astronomers watch a black hole ‘wake up’ in real-time

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 moon All-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 thought Uranus has a longer day than astronomers thought

By Laura Baisas