Outer Space

Whales are tricky to see from a satellite. Belugas, with their light skin standing out against the water, are a bit easier to spot.

Can Satellites Really Detect Whales From Space?

Distant identification of whales is improving rapidly, but finding the behemoth creatures is still surprisingly tricky

Artist's concept of a spacecraft that will test a nuclear thermal rocket engine.

Nuclear-Powered Rockets Might One Day Carry Astronauts to Mars

NASA and DARPA are building a nuclear thermal rocket engine that could slash the time it would take to reach the Red Planet

Sacha Jafri's We Rise Together—With the Light of the Moon is designed to endure on the moon’s surface.

One Small Step for Space Art

A new artwork by Sacha Jafri could travel to the moon next month

NASA's Perseverance Mars rover took this selfie with some of the sample tubes it left on the Red Planet's surface using the camera at the end of its robotic arm.

Perseverance Rover Completes Depot of Mars Rock Samples

The collection is a failsafe for the Mars Sample Return project, which aims to deliver Martian rocks to Earth

A meteor streaks across the sky near Lone Pine, California, during the annual Perseid meteor shower in 2022.

Ten Dazzling Celestial Events to See in 2023

Stargazers can look forward to watching a rare comet, a super blue moon and several spectacular meteor showers

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

NASA has 42 current astronauts to select from for a possible mission to the moon.

How NASA Is Selecting the Next Astronauts to Walk on the Moon

The space agency has said that it will send the first woman and the first person of color to the lunar surface

The 16.7-pound meteorite is thought to be an ordinary chondrite, the most common kind of space rock.

Researchers Find Rare 17-Pound Meteorite in Antarctic Ice

The polar desert is a prime zone for preserving space rocks dating back to our early solar system

The twilight sky as seen in Coonabarabran, Australia

Light Pollution Is Outshining Stars Faster Than Thought

The artificial glow threatens astronomy, migrating birds and human health

An unidentified aerial phenomenon captured by the U.S. Navy

More Than 350 New UFO Sightings Added to U.S. Government Records

Officials speculate these may include balloons, drones, airborne plastic bags or birds

A camera mounted on the Orion spacecraft captured the moon just in frame on December 4, 2022. NASA plans to use Orion as part of a mission to return astronauts to the lunar surface.

How Space Radiation Threatens Lunar Exploration

Scientists are studying the possible impacts of the hazard on astronauts who will travel to the moon

Comet C/2022 E3 (ZTF) viewed through a telescope on December 24, 2022. It will reach its nearest point to Earth in early February.

Catch a Glimpse of a Rare Green Comet This Month

Skywatchers should be able to spot the once-in-a-lifetime spectacle with binoculars

The satellite reentered Earth's atmosphere at 11:04 p.m. Eastern time on Sunday.

NASA Satellite Falls Back to Earth After Almost 40 Years in Space

The reentry calls attention to the mission’s success and puts a spotlight on the dangers of space debris

Frost-capped sand dunes near Mars's north pole, captured by the Mars Reconnaissance Orbiter two days after the planet's winter solstice

See the Chilling Beauty of Winter on Mars

NASA images reveal frost, geysers and intricate frozen patterns on the Red Planet

Kepler-1658b was the first exoplanet discovered by NASA’s Kepler Space Telescope in 2009.

This Exoplanet Is Doomed to Be Obliterated by a Star

Kepler-1658b is slowly spiraling toward a fiery demise

An artistic rendering of InSight on Mars

What NASA's Retired InSight Lander Taught Us About Mars

The Red Planet robot was officially decommissioned after dust on its solar panels robbed it of power

Giving a nod to previous human flight and exploration is a tradition of space travel.

Ten Strange and Amazing Historical Artifacts We’ve Launched to Space

As spaceflight catapults us into a high-tech future, several missions have made sure to honor the past

A composite of the SKA telescopes that combines real images with an artist's impression. 

Construction of World’s Largest Radio Telescope Begins

Scientists will use its instruments to study the early universe

The “Kenneth C. Griffin Exploring the Planets Gallery” is now open to visitors at the Smithsonian's National Air and Space Museum in Washington, D.C.

The Jury-Rigged Experiment that Led to the Discovery of Unknown Worlds

See the Kepler technology demonstrator at the National Air and Space Museum, along with a host of technologies that brought success to space exploration

In this composite image from the Geminid meteor shower in 2014, more than 100 meteors can be seen.

How to Watch the Radiant Geminid Meteor Shower

The spectacle, often one of the best showers of the year, will peak December 13 to 14

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