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The Conversation USA

Astronomers have discovered another puzzling interstellar object − this third one is big, bright and fast

  • Written by Darryl Z. Seligman, Assistant Professor, Michigan State University
imageThe Haleakala Observatory, left, houses one telescope for the ATLAS system. That system first spotted the object 3I/ATLAS, which isn't visible in this image. AP Photo/Lindsey Wasson

Astronomers manning an asteroid warning system caught a glimpse of a large, bright object zipping through the solar system late on July 1, 2025. The object’s...

Read more: Astronomers have discovered another puzzling interstellar object − this third one is big, bright...

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  3. Capitalism and democracy are weakening – reviving the idea of ‘calling’ can help to repair them
  4. What MAGA means to Americans
  5. From glass and steel to rare earth metals, new materials have changed society throughout history
  6. Philadelphians with mental illness want to work, pray, date and socialize just like everyone else – here’s how creating more inclusive communities is good for public health
  7. Speedballing – the deadly mix of stimulants and opioids – requires a new approach to prevention and treatment
  8. Employers are failing to insure the working class – Medicaid cuts would leave them even more vulnerable
  9. Parents who oppose sex education in schools often don’t discuss it at home
  10. Hurricane forecasters are losing 3 key satellites ahead of peak storm season − a meteorologist explains why it matters
  11. The Supreme Court upholds free preventive care, but its future now rests in RFK Jr.’s hands
  12. What damage did the US do to Iran’s nuclear program? Why it’s so hard to know
  13. The rule of law is key to capitalism − eroding it is bad news for American business
  14. Legal wrangling over estate of Jimmy Buffett turns his widow’s huge inheritance into a cautionary tale
  15. AI is advancing even faster than sci-fi visionaries like Neal Stephenson imagined
  16. Despite claims they’d move overseas after the election, most Americans are staying put
  17. Philadelphia’s $2B affordable housing plan relies heavily on municipal bonds, which can come with hidden costs for taxpayers
  18. Humans and animals can both think logically − but testing what kind of logic they’re using is tricky
  19. Mexican flags flown during immigration protests bother white people a lot more than other Americans
  20. Keeping brain-dead pregnant women on life support raises ethical issues that go beyond abortion politics
  21. In LGBTQ+ storybook case, Supreme Court handed a win to parental rights, raising tough questions for educators
  22. Pop, soda or coke? The fizzy history behind America’s favorite linguistic debate
  23. The hidden cost of convenience: How your data pulls in hundreds of billions of dollars for app and social media companies
  24. Why the US bombed a bunch of metal tubes − a nuclear engineer explains the importance of centrifuges to Iranian efforts to build nuclear weapons
  25. Bill Moyers’ journalism strengthened democracy by connecting Americans to ideas and each other, in a long and extraordinary career
  26. Invasive carp threaten the Great Lakes − and reveal a surprising twist in national politics
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  28. Who’s the most American? Psychological studies show that many people are biased and think it’s a white English speaker
  29. Here’s a way to save lives, curb traffic jams and make commutes faster and easier − ban left turns at intersections
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  31. What’s at risk for Arctic wildlife if Trump expands oil drilling in the fragile National Petroleum Reserve-Alaska
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  33. How can the James Webb Space Telescope see so far?
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