Middle Schooler Asked to Clean Out His Locker — and You'll Never Guess What His Mom Found in the Mess (Exclusive)
Megan Blankenship, on TikTok @mamameggzz, tells PEOPLE about making a video showing her 12-year-old's messy locker haul.
One large Milky Way galaxy or many galaxies? 100 years ago, a young Edwin Hubble settled astronomy’s ‘Great Debate’
In 1920, astronomers Harlow Shapley and Heber Curtis held a Great Debate. Shapley argued that the spiral nebulae were small and in the Milky Way, while Curtis took a more radical position that they ...