SUNSET: 
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.
Astronomy in Space with David Dickinson
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.
Astronomy in Space with David Dickinson
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.
Astronomy in Space with David Dickinson
Two Finalists for NASA's New Frontiers
NASA has selected two finalists for consideration as the next New Frontiers mission: a comet sample return and a flying drone for Titan.
Voyager 1 Fires Dormant Thrusters
NASA engineers directed the historic spacecraft Voyager 1 to fire its backup thrusters for the first time in 37 years.
NASA Joins Japanese Mission to Martian Moons
NASA is developing a key instrument for a mission to the Martian moons, Phobos and Deimos.
Astronomy in Space with David Dickinson
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.
China's Tiangong 1 Space Station to Burn Up
Early next year, an international team will track the uncontrolled atmospheric reentry of Tiangong 1, China's first prototype space station.
Astronomy in Space with David Dickinson
Curiosity Tests Workaround for Balky Drill
Engineers are looking for a way to continue using Curiosity's drill after a 10-month hiatus, but restoring the drill will probably take several more months.
Astronomy in Space with David Dickinson
How Bright is the Moon . . . Exactly?
An upcoming study will take the old calibration standard of the Moon's brightness to a new level of precision.
Asteroid 2012 TC4 To Zip Past Earth This Week
The close pass of near-Earth asteroid 2012 TC4 this week will give NASA a chance to test planetary-defense coordination.
Astronomy in Space with David Dickinson
Some Damage to Arecibo Observatory; Stormy Times Ahead
Arecibo and its team rode out the largest storm in its history, but it's unclear what the moderate damage will mean for the radio observatory's future.
Osiris-REX Images Earth During Flyby
The asteroid-bound Osiris-REX mission took time during last Friday's gravity assist maneuver to look back at its homeworld.
Osiris-REX to Fly by Earth on Friday
NASA's ambitious Osiris-REX asteroid sample return mission swings by Earth this Friday for a gravity assist en route to asteroid 101955 Bennu.
Astronomy in Space with David Dickinson
"Clockwork Rover" for Venus Exploration
Engineers have come up with an innovative "clockwork rover" concept designed to survive the hostile environment of Venus.
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.
Astronomy in Space with David Dickinson
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.
