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Tech

Missile defence satellite Next Gen OPIR GEO.

Lockheed Martin wins $4.9 billion contract to build advanced missile-warning satellites

By Samantha Mathewson

Lockheed Martin has been awarded a $4.9 billion contract to build a triad of missile-warning satellites for the U.S. Space Force.

How to calculate the odds that an alien spaceship has been spotted

By Anders Sandberg

The US military has released previously classified photos and films related to unidentified flying object (UFO) sightings, which mostly show something blurry moving strangely.

Spaceflight

Astronaut Peggy Whitson floats in the cupola on board the International Space Station, backdropped by the Earth below.

National Space Society's ISDC 2021 conference goes virtual — here's how to watch it live Thursday

By Elizabeth Howell

The National Space Society (NSS) will hold its flagship annual event virtually this year, starting on Thursday (June 24) — and you can watch most of it live, for free.

China's Tiangong space station has a modular design similar to the International Space Station.

China's Tiangong space station: What it is, what it's for, and how to see it

By Paulo de Souza

It will be built on a modular design, similar to the International Space Station operated by the United States, Russia, Japan, Canada and the European Space Agency.

Science & Astronomy

An artist's depiction of the two gaseous planets in orbit around the bright star HD 152843.

Citizen scientists discover 2 gas giants around a distant sun-like star

By Samantha Mathewson

A pair of gas-giant exoplanets was found orbiting a distant sun-like star, thanks to the help of citizen scientists around the world.

Hubble Space Telescope finds galaxy with weirdly little dark matter

By Rahul Rao

Astronomers may not know what dark matter is, but they do know that galaxies are supposed to contain a lot of the shadowy, invisible substance.

Search For Life

How to calculate the odds that an alien spaceship has been spotted

By Anders Sandberg

The US military has released previously classified photos and films related to unidentified flying object (UFO) sightings, which mostly show something blurry moving strangely.

This still is from a U.S. Navy jet's video of a UFO sighting.

Skies alive with UFOs? Government report on mysterious sightings due soon

By Leonard David

The U.S. government is set to release a UFO report soon, perhaps sometime this week. What will it say?

This image looking west toward the Séítah geologic unit on Mars was taken from the height of 33 feet (10 meters) by NASA’s Ingenuity Mars helicopter during its sixth flight, on May 22, 2021.

NASA's Perseverance rover begins 1st science campaign on Mars

By Mike Wall

NASA's Perseverance Mars rover has kicked off its highly anticipated science campaign with a Red Planet road trip.

Skywatching

Celestron's PowerSeeker 127EQ telescope is 30% off for Prime Day

By Elizabeth Howell

Looking for the perfect beginner's package for a telescope? The Celestron PowerSeeker 127EQ is on sale now for $132.49 for Amazon Prime Day, a 30% deep discount.

The full Strawberry Moon rises over Manhattan in this photo taken by John Entwistle on June 9, 2017.

June full moon 2021: See the 'Strawberry supermoon' shine

By Jesse Emspak

June's full moon, known as the Strawberry Moon, will come a day after the moon reaches the closest point in its orbit around the Earth, making it the second and last "supermoon" of the year.