New video on the Hubble Sequence! Had a lot of fun making this one, enjoy!
“IC 1101 has spent most of its life colliding with other galaxies and owes its size to these collisions. Over billions of years, galaxies about the size of the Milky Way and Andromeda, have been merging together to sculpt and shape this titan of the cosmos. This galaxy is bereft of star making gases, here rapid star formation has long ago ceased.
IC 1101 is dying a slow death. While not entirely devoid of new stars, unless it continues to merge with newer younger galaxies, IC 1101 will slowly fade to oblivion.”
[[ http://youtu.be/UE8yHySiJ4A ]]
💕 We made you some scientific valentines because we love you. 💕
And yes, you can print them out for the geeks in your life.
EVERYTIME IT’S ON MY DASHBOARD I WATCH IT AND CRY BEST VIDEO
Check out our 10 Facts About Mercury #Infographic!
http://astronomyisawesome.com/infographics/10-facts-about-mercury/
With #Mercury being the closest planet to the Sun, it’s very difficult to send spacecraft there to visit it, gather information and relay that back to us here on Earth. Nonetheless, we compiled all we know into this awesome infographic!
how people in Medicine flirt
Seduce me with science puns
(photo by mrmailbox)
Dwarf planet Ceres has more than 130 bright areas, and most of them are associated with impact craters. Now, Ceres has revealed some of its well-kept secrets in two new studies in the journal Nature, thanks to data from our Dawn spacecraft.
Two studies have been looking into the mystery behind these bright areas. One study identifies this bright material as a kind of salt, while the other study suggests the detection of ammonia-rich clays.
Study authors write that the bright material is consistent with a type of magnesium sulfate called hexahydrite. A different type of magnesium sulfate is familiar on Earth as Epsom salt.
Researchers, using images from Dawn’s framing camera, suggest that these salt-rich areas were left behind when water-ice sublimated in the past. Impacts from asteroids would have unearthed the mixture of ice and salt.
An image of Occator Crater (below) shows the brightest material on Ceres. Occator itself is 60 miles in diameter, and its central pit, covered by this bright material, measures about 6 miles wide. With its sharp rim and walls, it appears to be among the youngest features on the dwarf planet.
In the second nature study, members of the Dawn science team examined the composition of Ceres and found evidence for ammonia-rich clays. Why is this important?
Well, ammonia ice by itself would evaporate on Ceres today, because it is too warm. However, ammonia molecules could be stable if present in combination with other minerals. This raises the possibility that Ceres did not originate in the main asteroid belt between Mars and Jupiter, where it currently resides. But instead, might have formed in the outer solar system! Another idea is that Ceres formed close to its present position, incorporating materials that drifted in from the outer solar system, near the orbit of Neptune, where nitrogen ices are thermally stable.
As of this week, our Dawn spacecraft has reached its final orbital altitude at Ceres (about 240 miles from the surface). In mid-December, it will begin taking observations from this orbit, so be sure to check back for details!
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