22K views · 80 reactions | Dark energy makes up nearly 70% of the universe and is the mysterious force that causes it to expand, but new research suggests that it may be weakening — and could eventually collapse on itself in a “big crunch.” https://cbsn.ws/4kZqek4 | CBS News | Facebook

It makes up 70% of our universe, yet it still baffles us! Exploring alien signals, elusive dark energy, and the likelihood of finding another ‘you’ out there, Space Mysteries will unlock the secrets of our universe. #SpaceMysteries | BBC Earth