How Vera Rubin and Nancy Grace Roman transformed astronomy
The Rubin Observatory and Roman Space Telescope will reflect the accomplishments of their namesakes and transform our understanding of the universe.
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The Rubin Observatory and Roman Space Telescope will reflect the accomplishments of their namesakes and transform our understanding of the universe.
The Coma star cluster is one of the largest and brightest open star clusters in the sky. At a distance of 288 light-years, it is also one of the nearest.
The Universe gravitates so that normal matter and General Relativity alone can't explain it. Here's why dark matter beats modified gravity.
"Forget it. I didn't have that thing inside me where I wanted to smash against somebody and watch them break. I was too sensitive for that and disliked being that sensitive." -Josh Brolin How do you figure out what something is made of? You take it apart -- cracking it open if necessary -- and look inside. This is something we've been doing since... well, since before our ancestors were even human.
See two stunning planets meet up and enjoy a magnificent star from May 27 to June 3.