Looking for LUCA, the last universal common ancestor

Around 4 billion years ago there lived a microbe called LUCA: the Last Universal Common Ancestor. There is evidence that it could have lived a somewhat 'alien' lifestyle, hidden away deep underground in iron-sulfur rich hydrothermal ...

Image: 115 years of flight

For most of human history, we mere mortals have dreamt of taking to the skies—from the myth of Icarus, to kites in China, to the development of hydrogen-filled balloons in the 8th century, to early experiments with gliders ...

Hubble goes deep

This image from the Hubble Deep UV (HDUV) Legacy Survey encompasses 12,000 star-forming galaxies in a part of the constellation Fornax known as the GOODS-South field. With the addition of ultraviolet light imagery, astronomers ...

Image: Giant black hole powers cosmic fountain

Before electrical power became available, water fountains worked by relying on gravity to channel water from a higher elevation to a lower one. This water could then be redirected to shoot out of the fountain and create a ...

See a passing comet this Sunday

On Sunday, Dec. 16, the comet known as 46P/Wirtanen will make one of the 10 closest comet flybys of Earth in 70 years, and you may even be able to see it without a telescope.

Video: Enjoying the Geminids from above and below

On the night of December 13, into the morning of December 14, 2018, tune into the night sky for a dazzling display of fireballs. Thanks to the International Space Station, this sky show – the Geminids meteor shower—will ...

Preparing for discovery with NASA's Parker Solar Probe

Weeks after Parker Solar Probe made the closest-ever approach to a star, the science data from the first solar encounter is just making its way into the hands of the mission's scientists. It's a moment many in the field have ...

page 7 from 313