Astronomy
Satellite swarms may outshine the night sky’s natural constellations
Simulations suggest that satellite “mega-constellations” will be visible to the naked eye all night long in some locations.
Space
More Stories in Space
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CosmologyAstronomers may have seen a star gulp down a black hole and explode
It took sleuthing through data collected by a variety of observatories to piece together the first firm evidence of a theorized cosmic phenomenon.
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AstronomyHow radio astronomy put new eyes on the cosmos
A century ago, radio astronomy didn’t exist. But since the 1930s, it has uncovered cosmic secrets from planets next door and the faint glow of the universe’s beginnings.
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AstronomyNew ideas on what makes a planet habitable could reshape the search for life
New definitions of “habitable worlds” could include planets with global oceans under a steamy hydrogen atmosphere or exclude ones that started out habitable but lost all their water.
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Planetary Science50 years ago, astronomers were chipping away at Pluto’s mass
Prior to the discovery of Pluto’s moon Charon, astronomers struggled to pin down the dwarf planet’s mass.
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Cosmology‘Flashes of Creation’ recounts the Big Bang theory’s origin story
In ‘Flashes of Creation,’ author Paul Halpern tells the story of George Gamow , Fred Hoyle and their decades-long sparring match about the Big Bang.
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AstronomyThe definition of planet is still a sore point – especially among Pluto fans
In the 15 years since Pluto lost its planet status, scientists have continued to use the definition that works for them.
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AstronomyHere’s how cool a star can be and still achieve lasting success
The dividing line between successful stars and failed ones is a surface temperature of about 1,200° to 1,400° Celsius, a new study reports.
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Planetary ScienceSee some of the most intriguing photos from NASA’s Perseverance rover so far
Six months ago, Perseverance landed on the Red Planet. Here’s what the rover has been observing.
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SpaceVera Rubin’s work on dark matter led to a paradigm shift in cosmology
‘Bright Galaxies, Dark Matter, and Beyond’ tells the story of how astronomer Vera Rubin provided key evidence for the existence of dark matter.