Mark Reed drew two circles with black marker on a whiteboard inside the Peter F. Hurst Planetarium, then moved a magnetic sun, Earth and Mars to help explain retrograde motion. But that wasn't the end ...
This piece is part of the DrexelNow series showcasing "A Day in the Class" for some of Drexel University's most interesting and impactful courses. Students in “PHYS 131 — Survey of the Universe” are ...
Amelia Scholte from Pam Leestma’s 2nd grade class sharing the ISS truss she made proving the triangle shape is the strongest. Photo courtesy of Pam Leestma Editor’s note: Fifty years ago on July 20, ...
The online course offers college credits and has four world-renowned scientists as its instructors. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it ...
Researchers have believed that Segue 1, a puny galaxy orbiting the Milky Way just 75,000 light-years away, was packed with dark matter, a substance in space that doesn't shine or interact with light.
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