Sarah

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This week in space: lots of NASA and Kepler, and a mysterious dimming star - ExtremeTech

By on August 12, 2016 at 9:34 am<p>This site may earn affiliate commissions from the links on this page. Terms of use.<p>It’s been a good week for NASA. …

These vein-like features stretched across the surface of Mars can tell us a lot about the planet

But now, NASA has announced that there is no evidence to suggest that water is to blame for these gullies.<p>According to a statement from NASA, after doing composition maps of more than 100 gully sites, the gullies turned up empty for signs of "abundant liquid water or its byproducts."<p>The Martian …

A new reason we haven’t found alien life in the universe

Italian physicist Enrico Fermi once famously exclaimed “Where is everybody?” We have been trying to answer his paradox — we exist, so aliens should exist, too — ever since. According to one new solution, we have not seen or heard from any galactic neighbors because we are still waiting for them to …

Princeton University

Earth Has a Second, 'Mini' Moon, Says NASA

Three's company.<p>Sometimes you’re a planet who’s been with a moon for a few eons, and it all becomes a bit too… <i>familiar.</i><p>Things started out with a hot …

3tags.org

3tags.org

Supernova shrapnel hits our solar system

Particles generated in relatively recent, relatively close supernovae have been captured by a NASA satellite. An instrument on NASA's Advanced …

Finding aliens may be even easier than previously thought

But in recent years, efforts have begun to simplify the search for intelligent life. Thanks to the efforts of groups like the Breakthrough Foundation, it may be possible in the coming years to send "nanoscraft" on interstellar voyages using laser-driven propulsion. But just as significant is the …

Scientists want to change the way a second is defined

For nearly 50 years, the length of a second has been defined in the same way.<p>But researchers in Germany now believe they have found how to make the …

Physics

These Martian Rocks Hint at Ancient Alien Life

Mars may be a frigid, dusty wasteland today, but evidence is mounting that the Red Planet was warm and wet long ago. Future missions to Mars will …

Planetary Habitability

This Awesome Video Explains The Entire Universe in Less Than 4 Minutes

And at the end of it we're all still going to die.<p>We humans like to make a big deal of things - climate change, new viruses, the death of our …

This Mind-Blowing Theory About Dark Matter Will Make You See Space Differently

Dark matter and the nature of black holes are two of the biggest mysteries in astrophysics, and now a new theory has linked the two together: Dark …

Dark Matter

Why dinosaur extinction is only half the story of killer asteroid's impact

The extinction event at the end of the Cretaceous Period, 66 million years ago, is the most well-known of the “Big Five” mass extinctions in the fossil record, even if it wasn’t the biggest. That accolade goes to the Great Dying at the end of the Permian Period, about 250 million years ago, when up …

Paleontology