“At the Edge of the Milky Way” –Vast Structure of Satellite Galaxies Coexist with Dark Matter

 

Milky-Way-Galaxy-Has-Four-Spiral-Arms-According-to-12-year-study

The vast polar structure–a plane of satellite galaxies at the poles of the Milky Way–is at the center of a tug-of-war between scientists who disagree about the existence of mysterious dark matter, the invisible substance that, according to some scientists, comprises 85 percent of the mass of the universe. Research conducted by scientists at Rochester Institute of Technology rules out a challenge to the accepted standard model of the universe and theory of how galaxies form by shedding new light on a problematic structure.

(more…)

“The Cretaceous Serengetti” –An Astounding Twenty-One Species of Dinosaur Fossils Discovered Down Under (WATCH Today’s “Galaxy” Stream)

 

Screen_Shot_2017-03-30_at_10.36.16_AM

More than 100 million years ago, on a muddy stretch of land that is now Australia, nearly two-dozen species of dinosaur once roamed. There were duck-billed ornithopods, which left long, three-toed tracks in their wake. Heavy armored dinosaurs pressed large, tulip-shaped prints into the soil. Predators scratched the ground with their talons. And the feet of gigantic, long-necked sauropods created bathtub-sized depressions in the dirt.

(more…)

Solar Winds Morphed Mars from a Potential Water-Based Life Habitat into a Frigid Desert World

 

Wetmars_drymars

 

Solar wind and radiation are responsible for stripping the Martian atmosphere, transforming Mars from a planet that could have supported life billions of years ago into a frigid desert world, according to new results from NASA’s MAVEN (Mars Atmosphere and Volatile Evolution Mission) spacecraft led by the University of Colorado Boulder.

(more…)

“Dark Energy Thought to Make Up 68% of the Universe, May Not Exist” –Royal Astronomical Society

 

Dark_matter_stride_by_tchaikovsky2

 

Enigmatic dark energy, thought to make up 68% of the universe, may not exist at all, according to a Hungarian-American team. The researchers believe that standard models of the universe fail to take account of its changing structure, but that once this is done the need for dark energy disappears. The team publish their results in a paper in Monthly Notices of the Royal Astronomical Society.

(more…)

“Space Talk” –NASA is Working to Forever Change the Way Astronauts Communicate Using Advanced Laser Communications

 

NASA-exoplanets-514399

 

NASA is working to forever change the way astronauts communicate to and from space using an advanced laser communications system called LEMNOS, which will enable exponentially faster connections than ever before.
Imagine being able to watch 4K ultra-high-definition (UHD) video as humans take their first steps on another planet. Or imagine astronauts picking up a cell phone and video-conferencing their family and friends from 34 million miles away, just the same as they might on Earth.

(more…)

error

"The Galaxy" in Your Inbox, Free, Daily