Engineer Joel Steinkraus uses sunlight to test the solar arrays on one of the Mars Cube One (MarCO) spacecraft. As the first CubeSat to enter…
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An example of a banded iron formation (BIF). The Soudan Iron-Formation is a Neoarchean-aged BIF unit in the Vermilion Greenstone Belt of northeastern Minnesota, USA.…
View of cranberry bogs above Little Trout Lake in northern Wisconsin on Oct. 18, 2018, from NASA-USGS Landsat 8 data. Some of the cranberries have…
Some galaxies are closer friends than others. While many live their own separate, solitary lives, others stray a little too close to a near neighbor…
Mars Before and After Dust Storm: Side-by-side movies shows how the 2018 global dust storm enveloped the Red Planet, courtesy of the Mars Color Imager…
The dwarf galaxy Sculptor, above, is a companion to the Milky Way galaxy. Astronomers will use Webb to study the motions of stars in Sculptor…
Sulfur chemistry was vital for early anaerobic life in the Archean eon, over 2.5 billion years ago. Credit: Peter Sawyer/Smithsonian Institution. Mapping the bonds and…
(Left) Apollo 12 astronaut Charles “Pete” Conrad Jr. stands beside NASA’s Surveyor 3 spacecraft; the lunar module Intrepid can be seen in the distance. Apollo…
The Jason-CS/Sentinel-6 mission that will track sea level rise, one of the clearest signs of global warming, for the next 10 years. Sentinel-6A, the first…
Portions of the International Space Station are pictured as the orbiting complex was flying into an orbital sunset. From front to back, are the Tranquility…
Earth’s magnetosphere, showing the northern and southern polar cusps. Credit: Andøya Space Center/Trond Abrahamsen Each second, 1.5 million tons of solar material shoot off of…
Ground-based facilities have detected radiation up to a trillion times the energy of visible light from a cosmic explosion called a gamma-ray burst (GRB). This…
An underwater rover called BRUIE is being tested in Antarctica to look for life under the ice. Developed by engineers at NASA-JPL, the robotic submersible…
New observations from NASA’s Hubble Space Telescope have investigated the nature of the powerful gamma-ray burst GRB 190114C by studying its environment. Shown in this…
Credit: X-ray: NASA/CXC/SAO/G.Schellenberger et al.; Optical:SDSS Astronomers have confirmed the first example of a galaxy cluster where large numbers of stars are being born at…
Artist’s concept of meteors impacting ancient Earth. Some scientists think such impacts may have delivered water and other molecules useful to emerging life on Earth.…
The Alpha Centauri group is the closest star – or solar – system outside of our own at a distance of 4.3 lightyears, and it…
LISA Pathfinder, led by the European Space Agency (ESA), is designed to test technologies that could one day detect gravitational waves. Gravitational waves, predicted by…
The colorful globe of Titan passes in front of Saturn and its rings in this true-color snapshot from NASA’s Cassini spacecraft in 2011. Credit: NASA/JPL-Caltech/Space…
For this Picture of the Week, the NASA/ESA Hubble Space Telescope turned its powerful eye towards an emission line galaxy called NGC 3749. When astronomers…