2701–2720 of 6,713 results
Vice President Mike Pence at the Kennedy Space Center

Science and Space Policy

Third Try at a National Space Council

What is the National Space Council and what will it do? A look back through history provides some possible answers.

Solar Spectroscope

The 2017 Total Solar Eclipse

How to Build on the Solar Eclipse Experience

Eclipse-related outreach activities will abound this August, but how do we best capitalize on this rare celestial event after it happens? Astronomers Without Borders has developed a Sun-focused curriculum and is looking for volunteers to help teachers implement it.

Supermassive black hole binary (art)

Black Holes

Supermassive Black Holes Observed in Close Dance

Astronomers monitoring a tight pair of supermassive black holes have observed their orbital motion.

Space Missions

"Gecko Gripper" Tech to Clean Up Space Junk

Researchers are figuring out how to use a nature-inspired "gecko gripper" technology to solve the mounting problem of space debris.

Evening scene in July 2017 300px

Sky Tour Astronomy Podcast

Tour July's Sky: Find Jupiter, Saturn & More

Jupiter and Saturn are easy to spot in the evening sky, as you'll discover in July's fun and informative astronomy podcast.

Voyager 2 approaches Neptune in 1989

Solar System

NASA Eyes "Ice Giant" Missions in the 2030s

A recent NASA study outlines possible dedicated missions to the "ice giant" planets Uranus and Neptune that might leave Earth as early as 2030.

Panoramic image of NEAF 2017 show floor

Product Videos & Demonstrations

NEAF 2017 Astronomy Equipment Videos

Dennis di Cicco interviews several vendors about their newest products — watch and find out full details on new lines of astronomy equipment.

NASA's boulder-retrieval mission

Science and Space Policy

NASA Closes Out Its Asteroid Redirect Mission

Following the release of the 2018 budget, the space agency has ordered an “orderly closeout” for the Asteroid Redirect program.

Exoplanets

A Partly Cloudy Exoplanet

Direct imaging of exoplanets was once only possible for the brightest of planets orbiting the dimmest of stars — but new observations of the Jupiter-like exoplanet 51 Eridani b provide tantalizing clues about its atmosphere.

Planet Nine orbital plot

Solar System

New Wrinkles in the Search for “Planet X”

Are astronomers being misled about a possible ninth planet by the quirky alignment of orbits that they’re finding in the distant Kuiper Belt?

Celestial News & Events

Eclipse 2017: T–2 Months and Counting

With two months to go until the total solar eclipse on August 21, it's time to get planning — if you haven't already!

Brown dwarf discovered in Backyard Worlds

Get Involved

Citizens Spot Cold World 100 Light-years Away

Citizen scientists have discovered a brown dwarf 100 light-years from the Sun, and more finds are sure to come from the Backyard Worlds citizen-science project.

Large-scale structure

Cosmology

Does the Milky Way Live in a Void?

A sparse galactic neighborhood could clear up certain problems with our understanding of the universe.

Exoplanet Family Tree

Exoplanets

Kepler Team Releases Final Exoplanet Catalog

The most comprehensive and detailed exoplanet catalog released yet marks the end of an era for Kepler, the planet-hunting telescope.

HXMT

Space Missions

China Launches Its First X-ray Observatory

China's Hard X-ray Modulation Telescope (HXMT) headed to orbit this past weekend.

Stellar Science

Brown Dwarfs vs. Stars: What Makes a Star a Star?

At what point does a clump of gas ignite, turning into a star? Astronomers now have an answer to what makes a star — and what makes a brown dwarf.

Celestial News & Events

Hello, Saturn! We're Glad You're Back

Saturn, considered by many the most beautiful sight in the sky, comes to opposition this week with its rings in full tilt. You won't want to miss it.

Wind flowing out of a barred spiral galaxy

Black Holes

Ring Found Around a Galaxy’s “Hidden” Black Hole

A team of astronomers has taken a close look at a nearby galaxy — and discovered an unusual structure that sheds light on supermassive black holes’ relationships with their host galaxies.

Rosetta's Comet 67P

Astrobiology

Rosetta Finds Clues to Earth's “Xenon Paradox”

Xenon measured by the European Space Agency's Rosetta spacecraft has shed light on a long-standing mystery about the role comets played in Earth's formation.

Red dwarf star with exoplanet

Stellar Science

Mini-Flares Might Threaten Life Around Red Dwarf Stars

A new study of data archived from the Galaxy Evolution Explorer (GALEX) spacecraft is revealing just how hard life might be on planets like those in the TRAPPIST-1 system.