Astronomers released 25 new images to celebrate the 25th anniversary of the Chandra X-Ray Observatory's launch.

See 25 Stunning Images of the Cosmos From the Chandra X-Ray Observatory as It Celebrates 25 Years in Space

Chandra, the world’s most powerful X-ray telescope, has been peering at black holes, stellar explosions and dark energy for a quarter-century

Apollo 11 astronauts watched the Earth rise above the moon’s horizon on July 20, 1969.

Apollo Astronauts Left American Flags, Boots and Even Poop on the Moon. Here's Why These Artifacts Matter

Fifty-five years after the first human lunar landing, scholars and experts are looking to preserve the past as more nations and companies undertake moon missions

A damselfly covered with drops of dew sits on a leaf in this close-up photo.

See Ten Creepy-Crawly Portraits From the Insect Week Photography Contest

The Royal Entomological Society’s Photography Competition highlights the wonder and diversity of the six-legged creatures that crawl, swim and fly across the planet

A Forster's tern appears to float upside-down after emerging from underwater at Shoreline Lake in Mountain View, California.

See 12 Captivating Bird Images From the Audubon Photography Awards

In its 15th year, the contest showcases diverse avian species, their fascinating behaviors and the habitats needed to keep them alive

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

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

Wide-ranging anecdotal reports and studies suggest many animals respond to a total solar eclipse, whether by showing anxiety, performing nighttime behaviors or doing something unexpected.

How Do Animals React to a Total Solar Eclipse? Scientists Document Strange and Surprising Behaviors

Nature enthusiasts work with researchers to figure out how creatures respond to the celestial phenomenon

Eastern coyotes—a subspecies that has coyote, wolf and domestic dog DNA—run in a West Virginia forest.

Five Shocking Animal Hybrids That Truly Exist in Nature, From Narlugas to Grolar Bears to Coywolves

The now-famous “virgin” stingray Charlotte is not having hybrid babies, scientists say. But in nature, distinct species sometimes interbreed to produce surprising offspring

Roughly every 71 years, the bright periodic comet 12P/Pons-Brooks passes by the sun and Earth. At its brightest, it can be seen with the naked eye in fairly dark skies.

You Can See a Rare, Bright Comet This Month. Will It Be Visible During the Solar Eclipse?

Comet 12P/Pons-Brooks is a frigid, volcanic ice ball that won’t pass near Earth again until 2095

The Whirlpool Galaxy (also known as M51), located 31 million light-years from Earth, is a particularly radiant object seen during the Messier marathon. This image was captured by the Hubble Space Telescope—skywatchers looking through a backyard telescope or binoculars would see the galaxy in far less detail.

What It Takes to Complete the Ultimate Skywatching Endurance Challenge

The "Messier marathon" prompts space hobbyists to spot 110 celestial objects in one night, and the best time to try it is in March

Phobos passes across the sun's surface on February 8, as captured by NASA's Perseverance rover.

What Does a Solar Eclipse on Mars Look Like? New, Breathtaking Images, Caught by NASA's Perseverance Rover, Give Us an Idea

The robot recently observed each of the Red Planet’s moons passing across the sun in the Martian sky

An oak peacock moth lands on a window behind dancing wedding guests, illuminated in red light. This photograph won the category for butterflies and dragonflies.

See 11 Winning Images From the Close-Up Photographer of the Year Awards

Focused on little details of animals and plants, these stunning shots spotlight the world’s tiny wonders

A turtle appears to smile as a dragonfly alights on its nose.

See 25 Breathtaking Images From the Wildlife Photographer of the Year Contest

Representing some of the world's best nature photography, the pictures are being put to a popular vote for the People's Choice Award

A Quadrantid meteor flies through the sky, as captured by NASA's All Sky cameras.

What to See in the Sky in January: Meteor Showers, Planets and Comets

From the Quadrantids to a "swarm of stars," here are the celestial spectacles you won’t want to miss this month

Monarch butterflies' signature white spots could help them fly—and inspire better drones.

Seven Scientific Discoveries From 2023 That Could Lead to New Inventions

Biologists learned lots about animals and plants this year, and their findings could inspire better robots, medicine and environmental technologies

Uranus with its rings and moons, showcasing storms and a polar ice cap on the planet. The new Webb image was produced by combining longer and shorter exposures.

See the James Webb Telescope's Stunning New Image of Uranus With Its Rings and Moons Clearer Than Ever

The gleaming ice giant could soon become a top priority for exploration

Advances in artificial intelligence and dinosaur discoveries were just some of the major science stories this year.

The Ten Most Significant Science Stories of 2023

From an asteroid sample that was delivered to Earth to a discovery about human migration from North America, these were the biggest moments of the year

Our ten favorite science books of the year covered everything from astronomy to undersea exploration.

The Ten Best Science Books of 2023

From stories on the depths of the ocean to the stars in the sky, these are the works that moved us the most this year

The products range from measuring games to coding activities—and even include a robot that introduces children to artificial intelligence.

Ten Engineer-Selected STEM Toys to Give as Gifts in 2023

From coding to building to circuitry, these educational activities support basic skills to serve children in science, engineering and beyond

The James Webb Space Telescope's first image of Saturn.

Saturn's Rings Will Temporarily Disappear From View in 2025

From Earth’s perspective, we’ll be looking at the gas giant’s rings edge-on, making them nearly impossible to see

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