Latest in Science

Image credit:

Universe expansion: dark energy's out, anti-gravity's in, matter and antimatter still can't get along

Share
Tweet
Share
Save

Sponsored Links

Dark energy, we barely knew you, but before we ever found out if you were, in fact, the invisible hand pushing the cosmos apart, an Italian scientist ginned up a new theory that has anti-gravity doing the Yoko Ono to the universe's merry band of galaxies. Massimo Villata's theory assumes that both matter and antimatter have positive mass and energy density, which gets particles attracting particles and antiparticles attracting antiparticles through the force of gravity. To give dark matter the heave-ho from the galactic expansion equation, Villata supposes that the theory of general relativity applies in reverse to antimatter particles to create anti-gravity. And just as gravity pulls particles together, anti-gravity shoves them apart -- giving the universe its burgeoning waistline, no clown, king, or colonel required.

All products recommended by Engadget are selected by our editorial team, independent of our parent company. Some of our stories include affiliate links. If you buy something through one of these links, we may earn an affiliate commission.
Share
Tweet
Share
Save

Popular on Engadget

Uber will restrict NYC drivers' access to app due to new regulations

Uber will restrict NYC drivers' access to app due to new regulations

View
GNU founder Richard Stallman resigns from MIT, Free Software Foundation

GNU founder Richard Stallman resigns from MIT, Free Software Foundation

View
 FCC approves first commercial use of 3.5GHz band

FCC approves first commercial use of 3.5GHz band

View
What's on TV: 'Spider-Man: Far From Home'

What's on TV: 'Spider-Man: Far From Home'

View
Russia reportedly breached encrypted FBI comms in 2010

Russia reportedly breached encrypted FBI comms in 2010

View

From around the web

Page 1Page 1ear iconeye iconFill 23text filevr