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Solar System
Sep 9, 2019
September 6, 2019. The points of contact in Section 5 of C.3 Solar System Workings has been updated since it was first released. New text is in bold...
Sep 11, 2019
What energizes the Heart Nebula?
First, the large emission nebula dubbed
IC 1805 looks, in whole, like a human heart.
The nebula glows...
Universe
Sep 11, 2019
Management Plan for Large Mission Concept Studies - UPDATED February 11, 2019
Terms of Reference for the Large Mission Concepts...
Earth
Sep 13, 2019
In the Davis Mountains of far west Texas, at the University of Texas McDonald Observatory, astronomers spend their nights peering at the stars...
Sep 21, 2019
Framing a bright emission region,
this
telescopic view
looks out across a pretty field of stars along
the plane of our Milky Way Galaxy,...
Sep 22, 2019
What do you see when you look into this sky?
In the center, in the dark, do you see a
night sky filled with stars?
Do you see a
sunset to...
Sep 29, 2019
Do you see the hourglass shape -- or does it see you?
If you can picture it, the rings of
MyCn 18 trace the outline of an hourglass --...
Dec 6, 2019
This
cosmic vista stretches almost 20 degrees from top to
bottom, across the
dusty
constellation Taurus.
It begins at the Pleiades and ends...
Dec 10, 2019
What are those streaks over the horizon?
New
Starlink satellites reflecting sunlight.
SpaceX
launched 60 Starlink communication satellites...
Dec 11, 2019
What has this supernova left behind?
As little as 2,000 years ago, light from a massive stellar explosion in the
Large Magellanic Cloud
(...