Astronomy and Astrophysics

NASA’s TESS spacecraft discovers its first habitable planet, first world with two stars Visualization of a blue planet half in shadow, with mass of clouds gathered over the bright side

NASA’s TESS spacecraft discovers its first habitable planet, first world with two stars

Why some planets eat their own skies View of a star partially obscured by a large rocky planet with magma ocean

Why some planets eat their own skies

Parker Solar Probe’s first discoveries: Odd phenomena in space weather, solar wind Parker Solar Probe illustration

Parker Solar Probe’s first discoveries: Odd phenomena in space weather, solar wind

Astronomers use giant galaxy cluster as X-ray magnifying lens Phoenix galaxy cluster

Astronomers use giant galaxy cluster as X-ray magnifying lens

Nearly a decade in the making, exoplanet-hunting instrument installed in Hawaii Gemini Observatory

Nearly a decade in the making, exoplanet-hunting instrument installed in Hawaii

Ambitious project to map the Big Bang’s afterglow earns NSF funding South Pole Telescope at night

Ambitious project to map the Big Bang’s afterglow earns NSF funding

Lecture series to examine growing research on gravitational waves Merging black holes

Lecture series to examine growing research on gravitational waves

New exoplanet is smallest to be precisely measured Kepler mission rendering

New exoplanet is smallest to be precisely measured

New measure of Hubble constant adds to mystery about universe’s expansion rate Red giants

New measure of Hubble constant adds to mystery about universe’s expansion rate

Scientists use X-rays from faraway galaxy cluster to reveal secrets of plasma Plasma in distant galaxy cluster

Scientists use X-rays from faraway galaxy cluster to reveal secrets of plasma