Science news this week: NASA announces nuclear rocket, space reproduction proves difficult, and why weed gives people the munchies

March 28, 2026: Our weekly roundup of the latest science in the news, as well as a few fascinating articles to keep you entertained over the weekend....

March 28, 2026: Our weekly roundup of the latest science in the news, as well as a few fascinating articles to keep you entertained over the weekend.