Where science and tech meet creativity.

And it came from the CMB . . .

Fraser (my co-host over at Astronomy Cast) and I like to joke about how everything we know in astronomy we know because of the Cosmic Microwave Background. How do we know the universe formed during the Big Bang? The CMB. How do we know the cosmic geometry is flat? The...

Dating Stars: HE 1523-0901

When trying to date a star, many websites state the problem is often best to approached with sweet words, lots of bling, and paparazzi repellent. A stint in the right rehab facility might increase your odds of success, and playing sports professionally has also worked...

All the news that tried to escape

Today’s American Astronomical Society news feed brought me a small handful of press releases. Three releases (1, 2, 3) related to the approximate mapping of the exoplanet HD 189733b, and to the discovery that exoplanet HD149026b is the hottest known world. Cool....

Twilight on Earth,
Morning on Gleise 581c

There are certain questions and dreams that drive society in its quest for the stars. Is there life beyond the Earth? How (and when) will we reach other worlds? What will it take to reach other worlds with life? For a long time, astronomers thought that we were still...

Dorrit Hoffleit, 1907-2007

She turned 100 on March 12 and passed away after a breif illness on April 9. She was sharp and witty and active all the way to the end. Many people have written about her, but I think her personal words describe her the best: “I do it because I like it. …...

Conflicted by Light

As an Astronomer, I am very pro-dark sky. As a person in favor of migrating birds, baby sea turtles, and general good health, I’m anti-light pollution. As a human who wants to see our planet’s environmental crash slow down and reverse, I’m in favor...