Science

U of M study finds lead contamination threatens butterflies
University of Minnesota researchers say they’ve found a correlation between lead levels and smaller wing sizes, which could keep the pollinators from thriving.
These researchers think the sludge in your home may help save the planet
What if the solutions to some of Earth’s biggest problems could be found in some of its smallest creatures? That bet has led a team of researchers to places both remote and — lately — rather familiar.
NASA rover spies the first aurora at Mars that's visible to the human eye
NASA's Perseverance rover has detected the first aurora at Mars that's visible to the human eye. That's good news for future astronauts who can savor the view on the red planet. European and U.S. scientists reported Wednesday that the green aurora in the dusty Martian sky was generated by a solar storm and had three days' advance notice last year to set aside viewing time.