Despite significant cost overruns, NASA's James Webb Space Telescope is now set for a March 2021 launch — assuming it receives Congressional reauthorization.
NASA officials announced Wednesday that the James Webb Space Telescope launch would be delayed until approximately May 2020. But before the mission can launch, its managers may have to face Congress.
A non-partisan government office has issued a report warning of additional delays for the James Webb Space Telescope, which could pit the mission against its funding cap.
Supermassive black holes en route to merger have strange dynamics in their gas disks. Astronomers have spotted the most distant spectroscopically confirmed supernova. And NSF decides the fate of the Arecibo Observatory.
A new telescope called the SkyMapper has charted stars and galaxies across the southern sky, producing a map called "the best ever created."
The U.S. National Science Foundation will continue to fund the iconic radio dish, though at a much-reduced level, as it seeks partners to share in the facility's operation.
The Zwicky Transient Facility has taken its first image, covering an area equivalent to 247 full Moons in a single shot. This beginning is part of an ongoing sea change in astronomy.
A professional observatory in Greece has begun recording flashes created when bits of interplanetary debris strike the Moon.
The long-awaited James Webb Space Telescope — the successor to the Hubble Space Telescope — has slipped its launch date by several months. It will now launch between March and June 2019.
After protests and a judge's ruling brought the colossal Thirty Meter Telescope project to a halt, a state panel has cleared the way for its construction atop Mauna Kea to proceed.
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.
A new survey promises the most complete map of radio-emitting celestial sources ever made. It will reveal thousands of new objects after seven years of observation.
Arecibo Observatory, the world's largest single-dish active radar telescope in the world, may be shut down or even destroyed due to funding concerns.
Green Bank is celebrating its 60th birthday by seceding from the National Radio Astronomy Observatory.
China recently unveiled FAST, the world's largest single dish radio telescope.
The MeerKAT radio telescope has produced its first light image — even at quarter-strength, it’s already the best of its kind in the Southern Hemisphere.
Abandoned for 25 years, a 12-meter antenna once used during the Cold War is now introducing astronomy students to the radio universe.
NASA is commencing work on the Wide Field Infrared Survey Telescope (WFIRST), the successor to the Hubble and the James Webb Space Telescopes.
Japan’s newest X-ray satellite, Hitomi (formerly Astro-H), promises to reveal the hot and hidden universe.
LIGO scientists have announced the direct detection of gravitational waves, a discovery that won't just open a new window on the cosmos — it'll smash the door wide open.
NASA has assembled the primary mirror for the James Webb Space Telescope, a big step on the way to the telescope’s October 2018 launch.
Gossip is racing around the physics and astronomy community: has LIGO finally heard its first black-hole merger? Here’s the reality.
NASA's new remote observatory located on a windswept island in the mid-Atlantic provides a critical capability for tracking space junk.
An innovative Earth-observing satellite now shows near-daily views of our home planet online.
What exciting new discoveries await astronomers in the field of gravitational wave astronomy?