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an illustration showing the hypothetical Planet 9 with blue rings and a question mark over it, with stars and a galaxy in the background
Planet Nine: Is the search for this elusive world nearly over? Astronomers have been scouring the outer solar system for signs of a hypothetical ninth planet for almost a decade, without success. However, we may finally be on the cusp of finding it, experts say.
Each bright spot in this image, the first all-sky image by eRosita, is black hole or a neutron star.
5 space discoveries that scientists are struggling to explain From "runaway" black holes shooting across the cosmos to secret planets in our own backyard, space is overrun with mysterious objects that scientists are clamoring to explain. Here are five of the strangest sights in the universe, as well as their possible origins.
An illustration of a large, round asteroid having a close encounter with the blue Earth
NASA's most wanted: The 5 most dangerous asteroids to Earth What is the most dangerous asteroid, how probable is an impact, and how much destructive power would a collision with Earth have? Here are 5 big space rocks that NASA is watching closely.

Latest about Space

An illustration of a person in a spacesuit crouching in the rocks in a Martian landscape

8 must-see destinations for your (future) Mars vacation

By Elizabeth Howell published

Mars
This artist concept shows the NASA WISE spacecraft, in its orbit around Earth

NASA shuts down down asteroid-hunting NEOWISE telescope as the sun drags it to its doom

By Brandon Specktor published

NASA's asteroid-hunting NEOWISE space telescope will soon plunge into Earth's atmosphere and burn to bits. Here's a look back at its epic mission that defied all expectations.

Asteroids
An illustration of a coronal mass ejection blasting out of the sun toward Earth

Barrage of solar explosions could bring auroras to the U.S. this weekend as Perseid meteor shower peaks

By Ben Turner published

Three powerful solar eruptions could bring auroras as far south as New York and Idaho right at the peak of the Perseid meteor shower this weekend.

The Sun
An artist's rendering of a streetlamp on a dark landscape with stars behind it

Researchers want to build 'streetlights' on the moon — and they'd be taller than the Statue of Liberty

By Brandon Specktor last updated

A private company has received funding from the U.S. government to build the first-ever "streetlights" on the moon — towering, Statue of Liberty-sized structures that could withstand the brutal lunar night.

The Moon
An animation showing the inside of a lava tube

Scientists just found the 'front door' to a massive cave on the moon

By Kimberly M. S. Cartier, Eos.org published

The Sea of Tranquility is home to at least one lunar lava tube, which could preserve a pristine and unweathered record of lunar volcanism.

The Moon
The Starliner capsule photographed through a porthole of the Internationl Space Station.

NASA may send Starliner home without its crew — leaving astronauts stuck in space until 2025

By Ben Turner last updated

The Crew-9 handover has been delayed amid rumors that NASA could be planning to return the troubled Starliner spacecraft without its astronauts.

Space Exploration
a rocky ball floating in space

Weird, 'watermelon shape' asteroids like Dimorphos and Selam may finally have an explanation

By Abha Jain published

New research finds why some asteroids have weird, watermelon-shaped moons trapped in orbit around them, contrary to what typical asteroid formation theories predict.

Asteroids
two side-by-side closeup photos of bright solar flares erupting from the sun

Sun fires off double-barreled X-class flares in span of 2 hours

By Meredith Garofalo published

Solar activity is expected to remain high this week.

The Sun
A fiery stream erupts from the sun. An inset of Earth for scale shows that the entire Earth is significantly smaller than the coronal mass ejection.

Powerful solar eruption temporarily rips 'tail' off Earth's magnetosphere

By Nathaniel Scharping, Eos.org published

A massive disturbance in the solar wind caused Earth’s magnetosphere to fly without its usual tail.

The Sun
Artwork showing two of the potential dangers of low-Earth orbit. The artwork shows a satellite damaged by an impact with debris, with a flare encroaching from top left.

China ready to launch 1st satellite in constellation that will challenge Elon Musk's Starlink

By Tia Ghose published

China plans to launch more than 100 satellites for its new "constellation" this year and thousands more by the end of the decade.

Space
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