In February 1987, Neil Gehrels, a young researcher at NASA's Goddard Space Flight Center, boarded a military plane bound for the…
Scientific data, informations, atlases and other on light pollution,night sky brightness,sky glow, nightime lights,naked eye visible stars,limiting magnitude,night-time stellar visibility,measurements from DMSP satellites, light pollution science and technology institute, Dati scientifici, informazioni, mappe, atlanti su inquinamento luminoso, brillanza del cielo notturno,effetti dell'illuminazione artificiale sul cielo stellato, stelle visibili ad occhio nudo,magnitudine limite, in base a misure da satellite, illuminazione artificiale,istil,istituto di scienza e tecnologia dell'inquinamento luminoso,by Pierantonio Cinzano.
Now that the Philae lander is sending data home from a comet, mission control is starting to do some science.
The little-known underdog of the solar system continues to surprise---especially when it comes to the weird configuration of its five motley moons.
With three spatial dimensions, the possibilities are tremendous. But only one answer fits what we see. Even more so than we are, the Universe is shaped by the conditions it was born with. Every
A theory that the moon formed from debris left over from a violent collision between the Earth and a Mars-size object has received a double boost in the form of two new studies. See what they say here.
How the Big Dipper, Orion, Crux, Leo, Cassiopeia, and Lyra have changed throughout human history, and how they will look in the distant future.
It's the satellite you probably didn't know that Earth has. If we could land on it, it could be pretty useful
Yet the dance between light-and-dark is sometimes incredibly puzzling. Such was the case for the 17th century astronomer, Giovanni Cassini, when he gazed upon the wondrous ringed planet of our Solar
What astrobiology can tell us about the fate of the planet.
In the hunt for extraterrestrial life, scientists started by searching for a world orbiting a star just like the sun. After all, the steady warmth of that glowing yellow ball in the sky makes life on Earth possible. But as astronomers continue to discover thousands of planets, they're realizing that if (or when) we find signs...
Observations by NASA's Curiosity Rover indicate Mars' Mount Sharp was built by sediments deposited in a large lake bed over tens of millions of years.
Our love of the one-time ninth planet holds the key to our drive for venturing out into the Universe. Next month will mark 85 years since a human being first imaged the motion of a world out there in
Somewhere dark and icy on a comet 320 million miles away, the history-making, comet-bouncing Philae spacecraft is sleeping. Its batteries are depleted and there isn't enough sunlight to recharge. But while the lander finished its primary job, collecting invaluable data on the surface of comet 67P/Churyumov-Gerasimenko, the Rosetta mission is far from over. For many scientists, the excitement is just beginning.
ESA's comet-chasing Rosetta mission spent much of the second half of October orbiting Comet 67P/Churyumov-Gerasimenko at less than 10 km from its surface. This selection of previously unpublished 'beauty shots', taken by Rosetta's navigation camera, presents the varied and dramatic terra
On November 12, the Rosetta spacecraft's Philae lander is due to land on the surface of a comet. As a space scientist working with those who have instruments on board, I can't wait. I met up with some
Rosetta has nearly completed its first funky three-cornered orbit in front of the comet. Each day we're getting views of the nucleus from more directions. I step you through Churyumov-Gerasimenko's geography.
In case you have been scoffing at the size of tiny comet Churymov-Gerasimenko (AKA the rubber ducky comet) that spacecraft Rosetta has been exploring, here's a nice scale image from Michel, AKA @quark1972 on Twitter.