Search results for “astrophysics”

ScienceCasts: Hubble’s Contentious Constant

There are two leading ways to measure the universe's rate of expansion, and for fifteen years, they more or less agreed with one another. Not anymore, and that’s a big deal. Visit http://science.nasa.gov/ for more. Click here to see more videos: https://alugha.com/NASA

ScienceCasts: Ocean Worlds

Visit http://science.nasa.gov/ for more. We once thought oceans made our planet unique, but we’re now coming to realize that ‘ocean worlds’ are all around us. Click here to see more videos: https://alugha.com/NASA

What Is Dark Matter?

Click here to see more videos: https://alugha.com/LifesBiggestQuestions 80 percent of our universe is made up stuff that doesn’t emit light or energy, and can't be directly observed. This is called dark matter. Many scientists believe its there, because there are, how to put this, hints that it exi

What If A Massive Solar Flare Hit Us?

The sun is great. The sun is our friend. The sun allows us to keep on living. Basically everything you know and love you can thank the sun for. But the sun is a fickle beast. We are entirely at the suns mercy, and sometimes, our fiery mate kicks off out there. Click here to see more videos: https:/

ScienceCasts: The Special Ingredients... of Earth

Researchers using a Japanese X-ray satellite with NASA participation have found the chemical ingredients of Earth-like planets in the Virgo cluster of galaxies. Click here to see more videos: https://alugha.com/NASA Visit http://science.nasa.gov/ for more.