Ask a Physicist: Is the Earth Putting on Weight?

Last week, I put in a call for questions, and the opportunity to win a signed advanced copy of The Universe in the Rearview Mirror (and seriously, it’s never too early to pre-order). The first winning column is up: “Is the Earth Getting Heavier?” (Spoiler: No).

Take a look, and, even though you’re not going to win a free book, be sure to send me your questions about the universe.

Next week, I’ll be providing a practical guide for intergalactic travel in an expanding universe. If you have any thoughts, be sure to let me know via email or in the comments section.

-Dave

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