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The young Earth's atmosphere might have looked like this artist’s interpretation — a pale orange dot.

Conceptual illustration of permanently shadowed, shallow icy craters near the lunar south pole.

Space data relay system shows its speed.

Artist’s impression of WASP-121b.

Is your Supercomputer Stumped? There May Be a Quantum Solution.

LightSail is a citizen-funded project from The Planetary Society to send a small spacecraft, propelled solely by sunlight, to Earth orbit.

This diagram shows the layout of the GJ 357 system. Planet d orbits within the star’s so-called habitable zone, the orbital region where liquid water can exist on a rocky planet’s surface. If it has a dense atmosphere, which will take future studies to determine, GJ 357 d could be warm enough to permit the presence of liquid water.

The Claude “Bud” Lewis Carlsbad Desalination Plant near U.S. Route 101 (the Pacific Coast Highway) in the northern portion of San Diego County; Carlsbad, California.

Fires in the Siberian area of Russia are usually quite severe by this time of year and 2019 is no exception. This NOAA/NASA Suomi NPP image taken on July 30, 2019 shows dozens to hundreds of fires burning across a large expanse of this mostly wilderness area of Russia. In fact, this year has been worse than most. Scientists have seen an unprecedented number of wildfires across the region since June. More than 2.7 million hectares (6,671,845 acres) of remote forest is currently burning across six Siberian and Far East regions, according to Russia’s Federal Forestry Agency. That's roughly the size of Massachusetts.