FlipFact of the Day: Everything we have ever seen and known about the universe—from the things on Earth to myriad stars in faraway galaxies—comprise less than 5 percent of the universe. The rest of it remains a complete mystery.
Roughly 68 percent of the universe is dark energy, while 27 percent of it is dark matter. Astronomers know of their existence because of their gravitational influence on the known universe; however, neither of them has ever been directly observed.
Today’s Science History Milestone: On September 2, 1993, the decades-long space race officially came to an end when the United States and Russia signed a pact for a joint venture to build a space station.
Still remember your 5th-grade science classes? Test your knowledge and see if you still remember these facts and fundamental concepts in human anatomy, biology, botany, and other branches of science. Click here to try the “Are You Smarter Than A Pinoy Fifth-Grader” Challenge.
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Cover: Shutterstock
References
- https://science.nasa.gov/astrophysics/focus-areas/what-is-dark-energy
Author: Mikael Angelo Francisco
Bitten by the science writing bug, Mikael has years of writing and editorial experience under his belt. As the editor-in-chief of FlipScience, Mikael has sworn to help make science more fun and interesting for geeky readers and casual audiences alike.
