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Here’s a great New ScienceCast video about the controversial Hubble Constant. It’s the key to knowing the age of our universe and much more.
Talk about dedication to science! This biologist stuck his arm into an eel tank – 10 times – to get an accurate measure of an eel’s shock. He said it felt “like touching a horse fence.”
A strikingly beautiful view of a delicate bubble of expelled material around the exotic red star U Antliae helps astronomers understand how stars evolve during the later stages of their life-cycles.
Cassini’s legacy will endure. Click for a video about the atmosphere of Saturn’s large moon Titan, which might resemble that of an early Earth.
We’re near solar minimum, but the sun has been active! Click here for a video of solar flares so far in September, 2017 and for news for the sun’s most recent X-flare.
X-ray astronomers explored how quickly young stars settle down after blasting the space around themselves – including any possible planets – with energetic radiation.
This large asteroid swept closest to Earth on September 1. It’s big enough that astronomers are still catching it in small telescopes, as a small, slow-moving “star.”
Hold out your hand for 10 seconds. A dozen electrons and muons just zipped through your palm. These cosmic rays, scientists believe, come from violent explosions in deep space.
There was only one part of Earth where you could catch the International Space Station crossing the sun’s face during the August 21 solar eclipse. These guys saw it, and created this video.
New short video from NASA about the hunt for potentially hazardous asteroids and comets, and ways to defend Earth against them.
Can you see stars’ different colors?
Shining sea and sky