Discovering Solar Dynamics Observatory daily video feeds.
Showing posts with label astronomy. Show all posts
Showing posts with label astronomy. Show all posts
Tuesday, August 11, 2015
Monday, August 3, 2015
Charon Names: Star Trek, Star Wars, and Octavia Butler
The New Horizons team the first map of named Pluto and Charon features to the IAU. The IAU has final approval over the names, but they set the categories so I don't see a problem.
Craters (Fictional Explorers)
- Kirk
- Spock
- Sulu
- Uhura
- Skywalker
- (Leia) Organa
- Vader
- Alice
- Nemo
- Kaguya-Hime
- Nasreddin
- Ripley
Mons (Authors)
- Clarke
- Butler
- Kubrick
Chasma (Fictional Ships)
- Marcoss
- Argo
- Nostromo
- Serenity
- Tradis
Brown Dwarf Aurora
(artist's rendition)
Hallinan discovered in 2006 that brown dwarfs can pulse at radio frequencies, too. This pulsing phenomenon is similar to what is seen from planets in our solar system that have auroras.
Powerful Auroras Found at Brown Dwarf | NASA
A phenomenon used to brilliant effect in Peter Watts's Blindsight.
Sunday, August 2, 2015
APOD: Stripped Galaxy
A distant galaxy is stripped of gas as it collides with a supercluster. Hubble image via APOD
Tuesday, July 28, 2015
quick links
Quick links:
- Boy Scouts ends ban on gay adults | GLAAD. It's nice but I still feel very disconnected from scouting.
- Sexuality is fluid — it's time to get past 'born this way' - New Scientist
- Strange Bright Spots on Ceres Create Mini-Atmosphere on Dwarf Planet
Sunday, July 26, 2015
There's a hole in the cosmos...
There's a hole in the cosmos
Dear Liza, Dear Liza
There's a hole in the cosmos
Dear Liza, a hole.
— BBC - Earth - The largest thing in the universe
And in other news, interstellar space has balls. (Buckyballs.)
Thursday, July 23, 2015
Sunday, July 19, 2015
Friday, July 17, 2015
Wednesday, July 15, 2015
Monday, June 22, 2015
Saturday, June 13, 2015
Medusa Nebula: European Southern Observatory @ APOD
Explanation: Braided, serpentine filaments of glowing gas suggest this nebula's popular name, The Medusa Nebula. Also known as Abell 21, this Medusa is an old planetary nebula some 1,500 light-years away along the southern border of the constellation Gemini. Like its mythological namesake, the nebula is associated with a dramatic transformation. The planetary nebula phase represents a final stage in the evolution of low mass stars like the sun, as they transform themselves from red giants to hot white dwarf stars and in the process shrug off their outer layers. Ultraviolet radiation from the hot star powers the nebular glow. An unrelated, bright, foreground star is near center in this close-up, telescopic view, while the Medusa's transforming central star is actually the dimmer star below center and toward the right-hand part of the frame. The Medusa Nebula is estimated to be over 4 light-years across.
Friday, June 12, 2015
The Quest to Find Philae: Emily Baldwin @ ESA
Tentative candidate for the lost Philae lander on comet 67P/C-G. The search for the landing site is described in an ESA Blog Post. (Emily Baldwin @ ESA)
Thursday, June 11, 2015
Fly Over Dwarf Planet Ceres: YouTube
A new video animation of dwarf planet Ceres, based on images taken by NASA's Dawn spacecraft, provides dramatic flyover views of this heavily cratered, mysterious world. The images come from Dawn's first mapping orbit at Ceres, at an altitude of 8,400 mile (13,600 kilometers), as well as navigational images taken from 3,200 miles (5,100 kilometers) away. The images provided information for a three-dimensional terrain model. The vertical dimension has been exaggerated by a factor of two, and a star field has been added in the background.
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