On Jan. 31, 1958, Explorer 1 became the first satellite launched by the United States. Its primary science instrument, a cosmic ray detector, was designed to measure the radiation environment in Earth ...

NASA on Thursday announced it has formally classified the 2024 crewed flight of the Starliner spacecraft as a “Type A” mishap, an acknowledgement that the test flight was a serious failure.

The commercial providers who inked agreements with the space agency include Airbus U.S., Capella Space and Vantor.

The recent closure of NASA’s largest library was only one of many so-called efficiency measures imposed on America’s national research facilities. Editor Lee Goldberg argues ...

From the controversial "Lolita" to the dark comedy "Eyes Wide Shut," HFA is screening all of the late filmmaker's feature ...

Apollo 11’s “live” moon landing was seen by the world, but the highest-quality original signal was recorded on rare telemetry tapes that later vanished inside NASA’s archives. Decades later, a long ...

A newly identified planet candidate, HD 137010 b, looks strikingly Earth-like in size and orbit — but it may be colder than Mars due to its dimmer star. If it has a thick enough atmosphere, though, ...

The story of NASA’s “missing” Apollo 11 moon tapes has long been treated as a smoking gun by conspiracy theorists, a tantalizing gap in the record of humanity’s first steps on another world. In ...

CAPE CANAVERAL, Fla. (AP) — Families of the astronauts lost in the space shuttle Challenger accident gathered back at the launch site Thursday to mark that tragic day 40 years ago. All seven on board ...

NASA Earth Science Communications announced on December 29, 2025, that The Earth Observer, the agency’s long-running newsletter, will cease publication after December 31, 2025. Alan Ward, Executive ...