The 3,200-pound satellite is expected to reenter Earth’s atmosphere later this week with a wide reentry zone covering parts of Africa, Australia, Southeast Asia, and South America.
The 4.1-billion-year-old meteorite is a “Rosetta Stone for Mars,” preserving clues about how the Martian environment has changed since the solar system formed.
A dying star 1,600 light-years from Earth is surrounded by two rings of gas and dust that astronomers believe are the remnants of the planetary bodies it once hosted.
Astronomers find that a white dwarf’s density and the kind of material it absorbed from its surroundings can produce a rainbow of shades in the star’s atmosphere.
Lying beyond Pluto, 2026 ED138 could be as large as 1,500 kilometers in diameter. Astronomers are still working to confirm whether it meets the criteria for a dwarf planet.
Two orbiters have long outlasted their expected lifespans and completely reshaped our understanding of the Red Planet, all while operating 140 million miles from Earth.
The Webb telescope sees tiny red dots everywhere. Astronomers can’t agree on what they are, but some believe they may be enormous stars with black holes inside.
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