It’s the first, most naive question you might think to ask. The solution is a lot more complicated than you imagine. According to a large amount of evidence, the overwhelming majority […]
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And are there independent ways to check? “Youth is the gift of nature, but age is a work of art.” –Stanislaw Jerzy Lec Each week at Starts With A Bang, […]
Why “letting there be light” in the Universe isn’t enough. “Dwell on the beauty of life. Watch the stars, and see yourself running with them.” –Marcus Aurelius I want you […]
It’s the faintest and hardest object to see in the entire catalogue, but the rewards — and knowledge you gain — are priceless! “If there is nothing new under the sun, at least the […]
How we discovered what the Universe was made of when it first formed. Image credit: X-ray: NASA/CXC/PSU/K. Getman et al.; IRL NASA/JPL-Caltech/CfA/J. Wang et al. “The nitrogen in our DNA, […]
If we came to be just a few billion years earlier, we’d never know. Image credit: Jean-Charles Cuillandre (CFHT) & Giovanni Anselmi (Coelum Astronomia), Hawaiian Starlight. “After all the ‘Universe’ […]
When we look across the Universe, we find that things used to be closer together in the past. So how large do things appear when they’re very far away? “Life is […]
This semester, 22 undergraduate and graduate students from a diversity of majors at American University have participated in a new course that I created titled “Science, Environment and the Media.” […]