Astronomy
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AstronomyArecibo Observatory, an ‘icon of Puerto Rican science,’ will be demolished
The telescope, known for cameos in moves like Contact and for fast radio burst observations, was feared to be on the verge of collapse.
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SpacePlanets with many neighbors may be the best places to look for life
Solar systems with many planets in circular orbits suggest a calm life-nurturing past, while single exoplanets with eccentric orbits hint at chaos.
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PhysicsGiant lasers help re-create supernovas’ explosive, mysterious physics
For the first time, scientists have re-created a type of shock wave that occurs in supernovas.
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SpaceThe Milky Way makes little galaxies bloom, then snuffs them out
When dwarf galaxies cross the Milky Way’s frontier, our galaxy compresses their gas, sparking star birth, but then robs them of their star-making gas.
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PhysicsLIGO and Virgo’s gravitational wave tally more than quadrupled in six months
Scientists report 39 sets of spacetime ripples from just half a year of data.
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AstronomyTurning space images into music makes astronomy more accessible
Music created from telescope data helps people with blindness and visual impairments experience the wonders of astronomy, and could aid research.
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SpaceA spherical star cluster has surprisingly few heavy elements
A globular cluster in the nearby Andromeda galaxy challenges conventional wisdom about how galaxies form.
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SpaceThe asteroid Bennu’s brittle boulders may make grabbing a sample easier
NASA’s OSIRIS-REx spacecraft is about to collect a bit of asteroid Bennu. Here’s why it’s good that new research suggests its boulders are brittle.
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SpaceThe first black hole image helped test general relativity in a new way
The Event Horizon Telescope’s iconic image of the black hole at the center of galaxy M87 once again shows Einstein was right.
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AstronomyThe Milky Way’s most massive star cluster may have eaten a smaller cluster
Observations of newfound stars suggest how the gathering of stars at the galaxy’s core grew so big.
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SpaceStellar winds hint at how planetary nebulae get their stunning shapes
Observations of red giant stars reveal that planets or even other stars may influence the shape of a nebula’s cloud of dust and gas.
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SpaceNeutrinos could reveal how fast radio bursts are launched
Highly magnetized stellar corpses called magnetars may be the source of two different cosmic enigmas: fast radio bursts and high-energy neutrinos.