The only known duo of pulsars has just revealed a one-of-a-kind heap of cosmic insights. For over 16 years, scientists have been observing the pair of pulsars, neutron stars that appear to pulsate.

Thanks to Einstein’s relativity, time flows differently on Mars than on Earth. NIST scientists have now nailed down the ...

When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. General relativity has withstood perhaps its toughest challenge to date. The theory, which Albert ...

Relativity Space initially planned to launch its Terran 1 rocket on March 8, but delays pushed the iconic launch to Saturday, where the company behind the rocket was forced to ultimately cancel the ...

Humans have been studying total solar eclipses for millennia to better understand the cosmos. Total eclipses have helped prove Einstein's theory of relativity and led to the discovery of helium. Here ...

March 22 (UPI) --Relativity Space launched the world's first 3D-printed rocket Wednesday night following two previous launch aborts this month. Despite the successful launch, the rocket failed to ...

CAPE CANAVERAL, Fla. (Reuters/CBS Newspath/WKRC) - The first 3D printed rocket is ready for its first launch into space this week. The Terran 1 rocket is called 'GLHF,' which stands for 'Good Luck, ...

March 8 (Reuters) - California-based startup Relativity Space called off the planned debut launch of its 3D-printed rocket in Florida on Wednesday over fuel temperature concerns, delaying a key test ...

Relativity Space announced Tuesday morning that it has raised an additional $650 million in private capital and that this money will fuel an ambitious agenda of 3D printing large, reusable rockets.

Relativity Space, the company aiming to use 3D printers to manufacture rockets and launch them from Florida, unveiled new details on its larger Terran R vehicle Tuesday. The company also said it had ...