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Donovan W Baker
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Cosmology Astrophysics Astronomy
Latest Activity: yesterday
Cosmology - Astrophysics - Astronomy
Hubble Wallpaper - Awesome Hubble Images
Started by May the Big Bang RIP. Last reply by May the Big Bang RIP Jul 23, 2017.
Started by Mrs.B. Last reply by Mrs.B Apr 9, 2016.
Started by Davy. Last reply by Onyango Makagutu Mar 8, 2016.
Started by Davy Oct 3, 2013.
Started by Davy. Last reply by Davy Aug 15, 2013.
The Last Goodbye
Ask Ethan: Why Did Light Arrive 1.7 Seconds After Gravitational Waves In The Neutron Star Merger?
Five Discoveries In Fundamental Physics That Came As Total Surprises
Even while the world suffers, investing in science is non-negotiable (Synopsis)
Merging Neutron Stars Deliver Deathblow To Dark Matter And Dark Energy Alternatives (Synopsis)
Neat photograph of the pilot among the aurora. I haven't had the oppertunity to see the aurora. I read it sometimes comes to lover latitudes. That's probably a good because I understandin middle lattitudes can upset the power grid.
Dark Matter Goes Missing in Oddball Galaxy
Galaxies and dark matter go together like peanut butter and jelly. You typically don't find one without the other.
Therefore, researchers were surprised when they uncovered a galaxy that is missing most, if not all, of its dark matter. An invisible substance, dark matter is the underlying scaffolding upon which galaxies are built. It's the glue that holds the visible matter in galaxies — stars and gas — together.
"We thought that every galaxy had dark matter and that dark matter is how a galaxy begins," said Pieter van Dokkum of Yale University in New Haven, Connecticut, lead researcher of the Hubble observations. "This invisible, mysterious substance is the most dominant aspect of any galaxy. So finding a galaxy without it is unexpected. It challenges the standard ideas of how we think galaxies work, and it shows that dark matter is real: it has its own separate existence apart from other components of galaxies. This result also suggests that there may be more than one way to form a galaxy.
This U-2 Spy Plane Pilot Photographed the Northern Lights Up Close and It's Breathtaking
Want to see what the Northern Lights, one of nature most beautiful phenomena, look like up close? Ross Franquemont can show you. A U-2 spy plane pilot by day and a photographer by night, Franquemont recently had the privilege of photographing the Aurora Borealis from his cockpit at 70,000 feet.
More so when you do not properly know what to expect in an environment that you can only theorise about and make very well educated guesses at. He was bloody lucky after all those gremlins striking the mission.
First time for anything major like that is always dangerous.
50 Years Ago, The First Spacewalk Nearly Ended In Tragedy
On March 18, 1965, Alexey Leonov stepped outside the thin metal shell of Voskhod-2 to float in the harsh void of space. For 12 minutes and 9 seconds, Leonov opened the doors on an entirely new branch of exploration as the first spacewalker. It was nearly a disaster.
All without leaving your house.
It's not only great that we can go to all the Planets and Moons of the Solar system but when we get there we can take such great HD photos.
What a great photo!
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