201–220 of 266 results
LHS 1140 b

Astronomy in Space with David Dickinson

Welcome to LHS 1140b: A Super-Earth in the Habitable Zone

The MEarth exoplanet survey nabs LHS 1140 b, a rocky planet transiting its host star just 41 light-years distant.

Cassini at Saturn

Solar System

Cassini's Grand Finale Orbits Set to Begin

NASA's Cassini mission nears its final act — the spacecraft will enter the first of its Grand Finale Orbits later this month.

Rosetta Selfie

Solar System

Rosetta Sees Changing Face of Comet 67P

Data from the Rosetta mission has linked outbursts on Comet 67P/Churyumov-Gerasimenko with dramatic changes on the comet's surface.


Astronomy in Space with David Dickinson

Welcome to Pan: Saturn's Ravioli-Shaped Moon

Cassini gave us a good look a Saturn's moon Pan last week... and what a strange world it is.

Fireball over ALMA

Solar System

A New Take on the Audible Meteor Mystery

A recent study suggests a plausible mechanism to explain why observers sometimes hear superbright meteors at the same time that they see them.

dragon v2 in orbit

Astronomy in Space with David Dickinson

SpaceX Announces 2018 Moonshot Mission

SpaceX's surprise announcement envisions humans traveling beyond low-Earth orbit and to the Moon at the end of 2018.

Jupiter's south pole

Astronomy in Space with David Dickinson

Juno Will Stay in Current Orbit Around Jupiter

NASA has announced that its Juno spacecraft will remain in a wide-ranging orbit around Jupiter, extending the mission's lifetime.

NE Syrtis Major

Spacecraft and Space Missions

NASA Narrows Down Mars 2020 Rover Landing Sites

Three possible landing sites are now in the running for the U.S. space agency's next Mars rover.

Solar Nebula

Solar System

Meteorites Date Demise of Solar Nebula

A study of ancient meteorites has refined the date for the dissolution of the solar nebula, the cloud that shrouded our Sun in its earliest days.

Juno at Jupiter

Solar System

Juno Swoops Past Jupiter's South Pole

NASA's Juno spacecraft continues to give us amazing views of Jupiter, now from its fourth perijove pass.

Rooftop micrometeoroids

Solar System

Micrometeorites Found on City Rooftops

A recent study found micrometeorites in piles of dirt collected from urban European rooftops.

TW Hydrae


Hubble Catches Exoplanet Shadow Play

A unique method reveals the influence of a planet within the stellar disk around TW Hydrae.


Astronomy in Space with David Dickinson

Cassini Spies Daphnis Making Waves

NASA's Cassini returns stunning new views of Daphnis and friends from its ring-grazing orbits.

Akatsuki at Venus

Astronomy in Space with David Dickinson

Akatsuki Spies Massive Wave on Venus

Japan's Venus orbiter has witnessed a huge atmospheric wave that spans the globe.

Lucy and Psyche

Spacecraft and Space Missions

NASA's Lucy & Psyche Asteroid Missions

Last week, NASA announced two new missions set to explore the earliest remnants of the solar system: asteroid 16 Psyche and Jupiter's Trojan asteroids.

Exoplanet-hunting TESS spacecraft

Astronomy in Space with David Dickinson

Looking Ahead: Space Exploration in 2017

An exciting year lies ahead for spaceflight involving astronomy and planetary science — by NASA and by other spacefaring nations.

Phobos, by ExoMars CASSIS instrument

Astronomy in Space with David Dickinson

ExoMars Trace Gas Orbiter Gets to Work

Welcome to Mars: the European Space Agency's ExoMars Trace Gas Orbiter sets up shop around the Red Planet.

H-IIB rocket

Astronomy in Space with David Dickinson

Watch Resupply Mission Chase Down the International Space Station

Find out how to see a cargo mission headed to the International Space Station this weekend.

Cassini final orbits

Astronomy in Space with David Dickinson

Amazing Views of Saturn's "Polar Hexagon"

NASA's Cassini spacecraft delivers stunning views from its new orbital perch.

Cassini at Saturn

Solar System

The Beginning of the End for Cassini

Cassini's final main engine burn this weekend sets up the first act of a grand finale.