Tagged: telescope

How Do Scientists ‘Weigh’ Stars?

How Do Scientists ‘Weigh’ Stars?

Stars are enormous balls of hot gas located many trillions of miles away, but when they’re observed from the Earth, they appear as tiny shining dots visible in the night sky. In a new...

Comet Likely Didn’t Cause Bizarre ‘Wow!’ Signal (But Aliens Might Have)

Comet Likely Didn’t Cause Bizarre ‘Wow!’ Signal (But Aliens Might Have)

An astronomer thinks he’s pinpointed the source of a mysterious radio signal from space: a passing comet that nobody knew about. But his colleagues said they’re still skeptical of the explanation, noting that comets...

New Fast-Radio-Burst Phenomenon Baffles Astronomers –“Reveals a Previously Unknown Hole in the Milky Galaxy”

New Fast-Radio-Burst Phenomenon Baffles Astronomers –“Reveals a Previously Unknown Hole in the Milky Galaxy”

Scientists detected the newest Fast radio burst, 5-millisecond intergalactic blips of radio waves, FRB 150215, on February 15, 2015 with the Parkes Telescope in Australia, but still don’t know the cause of it, or...

“Alpha Centauri Up Close!” –NASA Looks at Using the Sun as a Giant Gravity Lens to Study Alien Planets

“Alpha Centauri Up Close!” –NASA Looks at Using the Sun as a Giant Gravity Lens to Study Alien Planets

The search for a second Earth orbiting another star is one of astronomy’s greatest challenges. It’s a task that each passing day appears close to fruition. Since astronomers spotted the first exoplanet in 1988,...

Does Dark Energy Exist?

Does Dark Energy Exist?

Before I talk about dark energy and why that’s an even bigger deal, I need to clarify what we mean by the word “expanding.”  The actual observation that you can do in the comfort...