The supernova that wasn’t: a tale of three cosmic eruptions
In the mid-1800s, astronomers surveying the night sky in the Southern Hemisphere noticed something strange: over the course of a few years, a previously inconspicuous star named Eta Carinae grew...
NASA’s Juno Successfully Completes Jupiter Flyby
NASA’s Juno mission successfully executed its first of 36 orbital flybys of Jupiter today. The time of closest approach with the gas-giant world was 6:44 a.m. PDT (9:44 a.m. EDT, 13:44 UTC)...
Jupiter’s Extended Family? A Billion or More
Our galaxy is home to a bewildering variety of Jupiter-like worlds: hot ones, cold ones, giant versions of our own giant, pint-sized pretenders only half as big around. Astronomers say that in our...
NASA’s Juno to Soar Closest to Jupiter today
This Saturday at 5:51 a.m. PDT, (8:51 a.m. EDT, 12:51 UTC) NASA’s Juno spacecraft will get closer to the cloud tops of Jupiter than at any other time during its prime mission. At the moment of...
Jeff Williams Racks Up New Time-Spent-In-Space Record
You don’t have to go to Rio to see Americans breaking records – you can find one orbiting 250 miles above Earth. On Wednesday, Aug. 24, NASA astronaut and Expedition 48 Commander Jeff Williams...
NOAA’s GOES-R Arrives at NASA Kennedy for Launch Processing
NOAA’s GOES-R satellite arrived at NASA’s Kennedy Space Center Shuttle Landing Facility from Lockheed Martin Space Systems, Littleton, Colorado, on Aug. 22 aboard a U.S. Air Force C-5...
Hubble Investigates Stellar Shrapnel
Several thousand years ago, a star some 160,000 light-years away from us exploded, scattering stellar shrapnel across the sky. The aftermath of this energetic detonation is shown here in this...
