Sun

The remains of the observatory at the ancient Egyptian city of Kafr El-Sheikh

This Massive Egyptian Observatory Is Unlocking Celestial Secrets of an Ancient Culture

The 2,500-year-old building with roots in both science and religion helped track the movement of the sun and stars

Göbekli Tepe is an archaeological site in southern Turkey.

Could These Carvings in Turkey Be the World's Oldest Lunisolar Calendar?

One researcher thinks the V-shaped markings engraved into a pillar thousands of years ago may represent the days of the year

A team of archaeoastronomers suggests the Pyramid of the Moon in Teotihuacán, Mexico, may have been constructed to align with the movement of the sun.

Ancient Mesoamerican 'Pyramid of the Moon' May Align With Summer and Winter Solstices

New research suggests the monument in Teotihuacán, along with the larger Pyramid of the Sun, were designed based on astronomical movements

An abandoned house in the Namib Desert with the Milky Way rising above it.

See Ten Awe-Inspiring Images From the Astronomy Photographer of the Year Contest

Auroras, nebulas and stars take the spotlight in this space-themed competition, alongside shots of our own sun and moon

During a major lunar standstill, the northernmost and southernmost moonrise and moonset are at their farthest apart.

A 'Major Lunar Standstill' Is Happening This Year—and Friday's Full Moon Offers 'Dramatic' View

From now through much of next year, the moon will periodically rise and set at its most extreme points, thanks to a rare celestial phenomenon that only occurs every 18.6 years

Purple squares illustrate auroras on Mars, as detected by NASA’s MAVEN orbiter between May 14 and May 20. The brighter the purple, the more auroras present.

Mars Was Hit With a Solar Storm Days After Earth's Aurora Light Show, NASA Says

Studying this event could hold lessons for scientists about how to protect astronauts from radiation on future trips to the Red Planet

Captured by the Hubble Space Telescope, the heliosphere of a young star, LL Orionis, collides with an interstellar medium of dust. A similar event with our own sun, researchers say, might have occurred between two and three million years ago.

A Giant Interstellar Cloud May Have Once Enveloped Earth, Potentially Causing Ice Ages

Astronomers suggest this cold, dense cloud compressed our sun's protective field between two and three million years ago, leaving the Earth exposed to cosmic material

The northern lights appear near Saskatoon in Saskatchewan, Canada, on May 11, 2024.

Missed the Auroras in May? Here’s How to See Them Next Time

Three veteran aurora chasers and a NASA scientist share everything you need to know to check these dazzling displays off your bucket list

An illustration of the sun's magnetic fields overlaid on an image of the sun captured by NASA's Solar Dynamics Observatory in 2016.

Researchers Trace the Origin of the Sun's Magnetic Field, Shedding Light on Space Weather and Solar Cycles

In a new study, scientists suggest the sun's magnetic field originates much closer to the star's surface than previously thought, a finding that could boost predictions of solar activity

From Latourell, Oregon, the northern lights appear as ribbons of color in the night sky on May 11.

See 12 Breathtaking Images of the Northern Lights, Spotted in Shocking Places Over the Weekend

A period of unusually strong solar activity meant the colorful aurora borealis could be seen much farther south than normal

Stonehenge was constructed in stages beginning about 5,000 years ago.

Were Stonehenge's Builders Guided by the Moon?

Researchers are studying the monument's connection to a celestial event that occurs every 18.6 years

Tens of millions of people watched Monday's total solar eclipse.

When Are the Next Solar Eclipses? 2026 Promises Totality in Europe, While Much of America Has a Decades-Long Wait

The next total solar eclipse visible from the contiguous U.S. won’t take place until August 23, 2044—but eclipse chasers will have other opportunities to experience totality before that

Researchers from the University of Washington conducted an initial experiment of cloud brightening technology in Alameda, California, on San Francisco Bay.

A Secretive Experiment Released Salt Crystals Over San Francisco Bay—Could It Help Curb Warming?

The technology could make clouds reflect more sunlight, cooling the Earth below. But even the scientists leading the study say letting go of fossil fuels is a much-preferred response to climate change

Phases of the 2017 total solar eclipse, captured from Farewell Bend State Recreation Area in Oregon.

Watch the Total Solar Eclipse From Your Home With These Live Streams Online

Not in the path of totality? See the moon blot out the sun, revealing its magnificent corona, from your computer or phone

American video artist Brian Fridge created a five-billboard series in Dallas called View Finder that portrayed a solar eclipse.

The Long History of Art Inspired by Solar Eclipses

For centuries, curious artists have been trying to make sense of the celestial event

The solar eclipse’s path of totality stretches across North America in a roughly 115-mile-long band, from Mexico to Canada.

Listen Live to the Total Solar Eclipse, Transformed Into a Real-Time Musical Composition

A composer based at San Francisco’s Exploratorium museum will use data coming from the eclipsed sun to create an out-of-this-world “sonification” on April 8

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Why We Love Eclipses

Two perspectives on the astronomical phenomenon that has fascinated humans for as long as we’ve been watching the skies

A composite image showing multiple stages of 2019's solar eclipse as seen from Chile.

This Handheld Device Allows Blind People to Experience the Solar Eclipse With Their Ears

The technology, which translates the intensity of sunlight into a range of sounds, was designed to make eclipses more accessible to visually impaired people

Texas Motor Speedway staff watch the August 21, 2017, total solar eclipse through special eclipse glasses.

This Is the Gear You Need to View the 2024 Total Solar Eclipse

Protect your eyesight with eclipse glasses, binoculars, telescopes or lens filters

The 2017 total solar eclipse as seen from Madras, Oregon

Five Fascinating Science Projects Using the Total Solar Eclipse to Illuminate New Discoveries

The NASA-supported experiments are mobilizing legions of researchers and volunteers to capture wide-ranging observations during totality, from amateur radio operations to elusive solar plumes to unusual animal behavior

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