SUNSET: 
Mars-bound CubeSats Launch With NASA's InSight
The Mars Cube One mission — the first to send CubeSats into interplanetary space — will test revolutionary relay technologies as it accompanies Mars Insight to the Red Planet.
Pluto's Moon Charon Receives Formal Names
The International Astronomical Union has approved names for features on Pluto's largest moon, Charon.
ARIEL: Next-Decade Exoplanet Mission Selected
The European Space Agency's ARIEL mission will seek to analyze the atmospheric composition and true nature of distant worlds.
Tiangong 1's Remote Reentry
China's first space station reentered Earth's atmosphere over the South Pacific after almost seven years in space.
Rocket Barrage to Study Northern Lights
A series of 11 sounding rocket flights from two remote locations in the Arctic circle will help unlock the secrets of the processes behind the Northern Lights.
NASA Budget Proposal Cancels WFIRST
The recent budget proposal for NASA dealt a blow to the astronomical community, putting several key missions — including WFIRST, a successor to Hubble — under the financial axe.
Explorer 1: NASA Marks 60 Years in Space
60 year ago today, a small satellite ushered in the U.S. space program in a big way.
NASA Unveils New Power Source for Space Exploration
The Kilopower fission reactor will offer a more efficient and more powerful portable power source for solar system exploration.
Looking Ahead: Space Missions for 2018
The next year will see space missions headed for Mars, Mercury, the Sun, and more. Asteroid rendezvous, exoplanet discoveries, and a Mars landing await.
NASA Joins Japanese Mission to Martian Moons
NASA is developing a key instrument for a mission to the Martian moons, Phobos and Deimos.
NASA Completes Parachute Test for Mars 2020 Rover
A suborbital launch from Wallops Flight Facility tested a critical piece of landing hardware for the Mars 2020 rover.
"Clockwork Rover" for Venus Exploration
Engineers have come up with an innovative "clockwork rover" concept designed to survive the hostile environment of Venus.
Astronomy in Space with David Dickinson
Amazing Views of the Solar Eclipse From Earth . . . and Space
Satellites, aircraft, and the International Space Station provided great views of yesterday's solar eclipse, near and far.
Chasing the Total Solar Eclipse From Orbit
While millions will watch the August 21 total solar eclipse from the ground, International Space Station crew will have an amazing view high from overhead.
Breakthrough Starshot Takes to Space
Six Sprites, "the world's smallest spacecraft" have entered low-Earth orbit, a small milestone for Breakthrough Starshot's plan for interstellar voyage.
By Jove! Juno Images Jupiter's Great Red Spot
NASA's Juno Spacecraft delivers stunning closeup views of Jupiter's famous swirling Great Red Spot storm.
"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.
Astronomy in Space with David Dickinson
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.
KELT-9b: Hottest Hot Jupiter Exoplanet Yet
Astronomers announce the discovery of bloated gas giant KELT-9b, the hottest "hot Jupiter" exoplanet known orbiting a short-lived massive star.
New Clues on Fate of Schiaparelli Mars Lander
The European Space Agency has released its investigation into the crash of the Schiaparelli Mars lander in October 2016.
