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Credit: NASA’s Goddard Space Flight Center/Chris Smith (KBRwyle)
GOLD is the first NASA mission to fly as a hosted payload on a commercial communications satellite. GOLD is onboard on the SES-14 satellite.
Launch date: January 25, 2018
Launch location: Guiana Space Center in Kourou, French Guiana
Launch vehicle: Arianespace Ariane 5 rocket
Mission target: Earth’s ionosphere and thermosphere
Mission duration: 2-year nominal mission at geostationary orbit; extended mission possible
IRIS will provide key insights into all these processes, and thereby advance our understanding of the solar drivers of space weather from the corona to the far heliosphere, by combining high-resolution imaging and spectroscopy for the entire chromosphere and adjacent regions. IRIS will resolve in space, time, and wavelength the dynamic geometry from the chromosphere to the low-temperature corona to shed much-needed light on the physics of this magnetic interface region.
Learn more about MMS at www.nasa.gov/mms
Note: The size of the satellite model in the following animation and stills has been exaggerated for aesthetic purposes.
ICESat-2 carries a single instrument called the Advanced Topographic Laser Altimeter System (ATLAS), equipped with a multiple-beam laser, which sends 10,000 pulses of light to the ground each second. A small fraction of the light photons bounce off Earth’s surface and return to the instrument, where a photon-counting detector times their flight. Knowing this time, and the satellite’s position and orientation in space, scientists can calculate Earth’s elevation below.
ICESat-2 continues key elevation observations begun by the original ICESat satellite (2003 to 2009) and Operation IceBridge (2009 through present), to provide a portrait of change in the beginning of the 21st century.
Credit: NASA's Goddard Space Flight Center Conceptual Image Lab
This page provides artist concept animations of Juno during its trek to Jupiter, and its observations of interplanetary dust impacts along the way. Learn more about this discovery.
00:01 - One second after contact, OSIRIS-REx injected Bennu with pressurized nitrogen gas, causing an explosion of particles and driving loose material into its sample collector.
00:06 - Six seconds after contact, while it was still sinking into Bennu, OSIRIS-REx fired its thrusters to begin the back-away maneuver.
00:09 - Nine seconds after contact, thrusters on board OSIRIS-REx halted its descent into Bennu, pushing it away from the asteroid, and blasting loose material from the sample site. The spacecraft’s arm had sunk almost half a meter beneath the surface – far deeper than expected, confirming that Bennu’s surface is incredibly weak.
00:16 - Sixteen seconds after contact, the arm fully reemerged from the subsurface. OSIRIS-REx had collected a handful of material and kicked up roughly six tons of loose rock.
00:30 - Thirty seconds after contact, it shut off its thrusters and drifted away from Bennu. OSIRIS-REx will return its sample to Earth in September 2023.
It has been 10 years since NASA last launched a TDRS. This launch is the beginning of a welcome replenishment to the space network, which has served numerous national and international space missions since 1983.
Although no one knows why, it appears these flashes of gamma rays that were once thought to occur only far out in space near black holes or other high-energy cosmic phenomena are somehow linked to lightning.
Using measurements gathered by Firefly's instruments, Goddard scientist Doug Rowland and his collaborators - Universities Space Research Association in Columbia, Md., Siena College, located near Albany, N.Y., and the Hawk Institute for Space Studies in Pocomoke City, Md. - hope to answer what causes these high-energy flashes. In particular, they want to find out if lightning triggers them or if they trigger lightning. Could they be responsible for some of the high-energy particles in the Van Allen radiation belts, which damage satellites? Firefly is expected to observe up to 50 lightning strokes per day, and about one large TGF every couple days.
Created for the 10th anniversary of the launch of Landsat 7.