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Dusty debris discs surround the young star Fomalhaut. The two innermost asteroid belts had never been seen before Webb revealed them.

James Webb Telescope Reveals Asteroid Belts Around Nearby Young Star

The findings suggest the star Fomalhaut may have orbiting planets hidden among its rings of debris

During the 2017 solar eclipse, the path of totality was just 71 miles wide. In 2024, it's expected to be 125 miles wide.

Cleveland Is Giving Away a Free Trip to See the 2024 Solar Eclipse

The city is within the 125-mile-wide path of totality and will experience a total eclipse for nearly four minutes on April 8, 2024

Aurora borealis captured in northern Minnesota on April 23.

Widespread Auroras That Lit Skies This Week Are Getting More Common

The stunning colors that dazzled viewers on Sunday will appear again as the sun's activity builds to a peak in 2025

The hybrid eclipse will appear to viewers as a total solar eclipse, annular solar eclipse or partial solar eclipse depending on their vantage point.

How to Watch the Rare Hybrid Solar Eclipse From Your Home

This spectacle in the South Pacific will be visible in online livestreams on Wednesday. It is the last hybrid solar eclipse until 2031

It is expected that about 18 meteors per hour will light up the sky at the peak of the Lyrid meteor shower this year.

How to Watch the Spectacular Lyrid Meteor Shower

One of the oldest recorded annual showers, the Lyrids will peak on April 22

The total solar eclipse of 2017 as seen from Monmouth, Oregon

Everything You Need to Know About the 2024 Total Solar Eclipse

A veteran eclipse chaser explains how to get ready for one of the planet’s biggest celestial events

This composite image of the WR 124 star combines observations from Webb's Near-Infrared Camera (NIRCam) and Mid-Infrared Instrument (MIRI).

See the James Webb Telescope's Rare New Image of a Dying Star

The star is on the cusp of exploding in a supernova and may offer insights into the universe's so-called "dust budget crisis"

The moon contains lots of dust, which scientists say could help block some sunlight from reaching Earth, cooling the planet.

Launching Dust From the Moon Could Help Cool Earth, Scientists Say

Proposals to fight climate change by blocking sunlight aren’t new, but some experts argue the answer lies closer to home

An orbital diagram shows that 2023 BU's trajectory (in red) passed closer to Earth on January 26, 2023 than the orbits of geosynchronous satellites (in green). 

An Asteroid Just Passed Very Close to Earth

The truck-sized space rock came within 2,200 miles of our planet, closer than some satellites

About 100 miles northwest of Mexico City in the UNESCO-designated Monarch Butterfly Biosphere Reserve, up to a billion of the brilliant-winged insects spend November to March clustered on branches.

A Ring of Fire, Millions of Monarchs and Other Rare Natural Phenomena Worth Traveling For

Be in the right place at the right time to witness these sublime sights

This illustration shows the exoplanet LHS 475 b and its red dwarf host star, located 41 light-years away from Earth in the constellation Octans.

James Webb Telescope Confirms the Existence of Its First Exoplanet

The high-tech observatory is helping to study the rocky, Earth-sized world that's 41 light-years away

James Webb's new image of L1527

James Webb Captures a Protostar in a Fiery Hourglass

The very young star is a window into our own solar system's past

The dark patches on the image of the sun captured by  NASA’s Solar Dynamics Observatory are trio of coronal holes. 

NASA’s 'Smiling Sun' Image Is a Reminder of the Threat of Solar Wind

Coronal holes on the sun can release jets of charged particles that may interfere with Earth's atmosphere

An artist's rendition of an asteroid. 

Three Near-Earth Asteroids Were Hiding in the Sun’s Glare

One of them, which measures nearly one mile wide, might cross paths with Earth in the distant future

The exoplanet TOI-3757 b has the same average density as a marshmallow.

Puffy, Marshmallow-Like Planet Could Float in a Bathtub

Scientists found the new exoplanet located in the Auriga constellation 580 light-years away

Mechanical engineer Xiulin Ruan helped develop the world's whitest paint.    

The World’s Whitest Paint May Soon Help Cool Airplanes and Spacecraft

The ultra-white color reflects up to 97.9 percent of sunlight and may reduce our reliance on air conditioning

A close-up of Stonehenge in Salisbury, England

What Do Stonehenge and Japanese Stone Circles Have in Common?

A new exhibition explores the surprising parallels between British and Japanese traditions

One reader wonders: Why do we see the Moon during the day and not the Sun at night?

Why Can We See the Moon During the Day? And More Questions From Our Readers

You've got questions. We've got experts.

Like a regular sail uses wind to navigate across an ocean, solar sails use the pressure exerted by sunlight to move through space. (Pictured: a conceptual illustration of a diffractive solar sail)

Innovation for Good

NASA’s New Solar Sail Could Soon Navigate in Space

Scientists say the flashy tech could help them study the sun’s polar regions

Researchers tested how oxybenzone and sunlight combined harms anemones in a new study. 

Scientists Now Know Why Sunscreen Harms Corals

A new study shows that, when exposed to sunlight, anemones turn a chemical found in sunscreen into a toxin

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