Solar system

Boeing's first Starliner flight for NASA astronauts was scheduled for July 21, but is now delayed—perhaps indefinitely

Our planetary neighbor Venus becomes a brilliant beacon in the sky each time it reaches its greatest orbital distance from the sun

Earlier this month a meteorite crashed through the roof of a New Jersey home. The residents are still pondering the fate of their gift from the skies

The huge watery cloud spurting from Enceladus could carry the ingredients for life farther into space than previously known

Saturn’s surprisingly young rings and record-breaking bounty of moons make the planet a ripe target for springtime sky watchers

Specialists speculate that a Chinese spacecraft that spent nine months in Earth’s orbit might be similar to a U.S. space plane, and it could have research or military uses

White dwarfs, Earth-sized exoplanets, early galaxies and even Saturn’s moon Enceladus are on the agenda for JWST’s second year in space, but exomoons and others miss out

Hints of water vapor on a world called GJ 486 b could just as well come from the planet’s host star

Delays and budgetary overruns are causing many to worry that NASA’s ambitious planetary science program is at a breaking point

SpaceX’s Starship launch site in southern Texas is now the subject of a lawsuit after the vehicle’s first flight caused concerning damage

A dying star swallowing a giant planet hints at the fate awaiting our solar system some five billion years from now

New results from a U.A.E. orbiter suggest Mars’s moons may be pieces of the planet. A Japanese mission will tell us for sure