Orbit

Space Space is filled with junk, and scientists say it is time to start cleaning

Crowded orbits, falling debris, and dirty reentries push scientists to a bold cleanup plan that could pay for itself.

Space Time moves faster on Mars than on Earth, study finds Joseph Shavit

Space NASA confirms a new quasi-moon orbiting the Earth until 2083 Joshua Shavit

Space Space Force’s X-37B space plane to test revolutionary quantum navigation system in orbit

Space The Sun’s secret role in shaping comet paths and meteor showers

Space Astronomers find rare planet orbiting at 90 degrees around twin brown dwarf stars

Space New research links ice ages to shifts in the Earth’s orbit

Space Scientists discover new exoplanet orbiting closest single star to our Sun

Space Jupiter-sized interstellar visitor may have reshaped our solar system

Discoveries Scientists reveal the surprising cause of Saturn’s majestic rings

Discoveries Alien planet found spiraling to its doom into an aging star

Discoveries Potentially hazardous asteroid discovered lurking between Earth and Venus

Discoveries Saturn’s rings and tilt could be the product of an ancient, missing moon

Discoveries A first for search and rescue from space

Innovations There’s now a gas station in space

Global Good How many satellites are orbiting Earth?