Astronomy

The Trump administration is releasing its proposal to undo the “endangerment finding,” the long-standing rationale and legal imperative for regulating greenhouse gases under the Clean Air Act

Decades ago, a renegade physicist suggested that gravity isn't so much a force as just a byproduct of the universe's tendency to get more disordered. Now this idea might finally be testable

Decades ago, a renegade physicist suggested that gravity isn't so much a force as just a byproduct of the universe's tendency to get more disordered. Now this idea might finally be testable

Spica and the moon will appear over the southwestern horizon at sunset

An aircraft body modeled after an air taxi with weighted test dummies inside is being prepared for a drop test by researchers at NASA’s Langley Research Center in Hampton, Virginia. The test was completed June 26 at Langley’s Landing and Impact Research Facility. The aircraft was dropped from a tall steel structure, known as a gantry, after being hoisted about 35 feet in the air by cables. NASA researchers are investigating aircraft materials that best absorb impact forces in a crash.

'You here now. You weave together the future. So go out and seek, explore'

India recently rolled out the rocket that will launch the NISAR Earth-observing spacecraft, a joint effort between ISRO and NASA. Liftoff is scheduled for the morning of July 30.

Whether you're a Falcon 9 fan or want to go to Mars, this quiz is your chance to prove it.

Using the James Webb Space Telescope, astronomers hunted supermassive black holes devouring stars in dusty galaxies — but laying in wait for their stellar victims.

Russian ambush drones have been seen in Ukraine fitted with cheap solar panels, which enable them to lurk indefinitely, waiting for a target to come near

Russian ambush drones have been seen in Ukraine fitted with cheap solar panels, which enable them to lurk indefinitely, waiting for a target to come near

Residents both on the ISS and in Singapore were treated to a spectacular show at 3:18 am local time.

The best Sony lenses are the best glass you can get for your Sony camera. Our guide takes you through models that suit a range of budgets and photography styles.

While all the technology of the Apollo program still exists in the form of blueprints and designs, all the human expertise that went into crafting those rockets and spaceships is now either retired or passed away.

The JunoCam on NASA's Juno spacecraft has given us fantastic images of Jupiter and its moons, especially volcanic Io. But the instrument is suffering after years of exposure to Jupiter's intense radiation. There are few options for repairing that damage from such a great distance, but it looks like NASA's done it.

From an engineering perspective, space is surprisingly hot. Or, more specifically, solar energy can make systems that need to be kept at a very cold temperature heat up much more quickly than expected, given the reputation that space has of being cold. In some cases, this heating causes issues with long-term missions, which is why NASA is actively testing a two-stage active cryogenic system to keep one important consumable as cold as possible - fuel.

A team of astronomers using the Netherlands' powerful LOFAR radio telescope has found a white dwarf that's defying everything we thought we knew about them. Located over 3,500 light-years away, it’s pulsing out radio signals every 14 minutes with a twist, its radio waves mysteriously switch between spinning in circles and vibrating in straight lines. It's like discovering a lighthouse that randomly changes the shape of its beam, except this lighthouse is a star that died long ago and should be quietly cooling in space.

Want to bring the cosmos closer? Save nearly 40% on these Celestron Skymaster 15x70 binoculars, but with Prime Day ending soon you'll have to be fast!

A team of archaeologists excavating the ancient Maya city of Caracol discovered the tomb of its first ruler, which contained pottery, jadeite jewelry and a rare death mask

Christopher Smith and the gang deal with parallel realities and ARGUS in the second trailer for DC Studios and HBO Max's Peacemaker season 2.