NewsPronto

 
Men's Weekly

.

USA Conversation

The Conversation USA

The Conversation USA

Scientists detected a potential biosignature on Mars – an astrobiologist explains what these traces of life are, and how researchers figure out their source

  • Written by Amy J. Williams, Assistant Professor of Geology, University of Florida
imageNASA’s Perseverance rover explores Mars' Jezero Crater.NASA/JPL-Caltech/MSSS, CC BY-NC

As the Perseverance rover traversed an ancient river valley in Mars’ Jezero Crater back in July 2024, it drilled into the surface and extracted a sample from of a unique, striped rock called Chevaya Falls. The rover’s instruments then analyzed...

Read more: Scientists detected a potential biosignature on Mars – an astrobiologist explains what these...

More Articles ...

  1. Parasitic worms bury themselves in the brains of moose and elk – a new test can help diagnose these animals to prevent disease spread
  2. ‘Publish or perish’ evolutionary pressures shape scientific publishing, for better and worse
  3. Beauty sleep isn’t a myth – a sleep medicine expert explains how rest keeps your skin healthy and youthful
  4. Proposed cuts to NIH funding would have ripple effects on research that could hamper the US for decades
  5. Social scientists have long found women tend to be more religious than men – but Gen Z may show a shift
  6. Fewer international students are coming to the US, costing universities and communities that benefit from these visitors
  7. Bolsonaro joins a rogues’ gallery of coup plotters held to account for their failed power grab
  8. ‘This will not end here’: A scholar explains why Charlie Kirk’s killing could embolden political violence
  9. Detroit is the most challenging place in the country for people with asthma − here’s how to help kids in the Motor City breathe easier
  10. Who was Charlie Kirk? The activist who turned campus politics into national influence
  11. Federal subpoenas for transgender care records raise medical privacy concerns and put providers in a legal bind – a health law expert explains what’s at stake
  12. A federal program helps older people get jobs, but the Trump administration wants to get rid of it
  13. A new world order isn’t coming, it’s already here − and this is what it looks like
  14. A massive eruption 74,000 years ago affected the whole planet – archaeologists use volcanic glass to figure out how people survived
  15. How Giorgio Armani mastered the art of outfitting Hollywood stars to sell clothes to the masses
  16. How ‘South Park’ could help Democrats win back the young voters the party lost to Trump
  17. Drugged driving – including under the influence of cannabis and prescription drugs – is quietly becoming one of the most dangerous road hazards
  18. Poland responds to Russian drones incursion by invoking Article 4 of the NATO treaty − what happens next?
  19. Israeli strike in Doha crosses a new line from which relations with Gulf may not recover
  20. The discovery of a gravitational wave 10 years ago shook astrophysics – these ripples in spacetime continue to reveal dark objects in the cosmos
  21. Where does your glass come from?
  22. Sacred texts and ‘little bells’: The building blocks of Arvo Pärt’s musical masterpieces
  23. 40 years ago, the first AIDS movies forced Americans to confront a disease they didn’t want to see
  24. Doctors are joining unions in a bid to improve working conditions and raise wages in a stressful health care system
  25. Why journalists are reluctant to call Trump an authoritarian – and why that matters for democracy
  26. Bail reforms across the US have shown that releasing people pretrial doesn’t harm public safety
  27. How does AI affect how we learn? A cognitive psychologist explains why you learn when the work is hard
  28. Israel’s attack in Doha underscores a stark reality for Gulf states looking for stability and growth: They remain hostage to events
  29. New report ranks Philadelphia and Allentown among toughest cities in America for people with asthma
  30. What causes muscle cramps during exercise? Athletes and coaches may want to look at the playing surface
  31. We tracked every overseas trip by world leaders since the end of the Cold War – here’s what we found
  32. The surprising recovery of once-rare birds
  33. Techno-utopians like Musk are treading old ground: The futurism of early 20th-century Europe
  34. Trump reversed policies supporting electric vehicles − it will affect the road to clean electricity, too
  35. Brazil’s Bolsonaro may soon join ranks of failed coup plotters held to account − hampering the chance of any political comeback
  36. How Trump’s dismissal of a Fed governor could redefine presidential power – if courts agree that he alone can interpret vague laws
  37. Trump’s radical argument that he alone can interpret vague laws fails its first court test in dismissal of Fed governor
  38. Philly’s Puerto Rican Day Parade embodies strength of the mainland’s second-largest Boricua community
  39. When you’re caught between ‘yes’ and ‘no,’ here’s why ‘maybe’ isn’t the way to go
  40. 50 years ago, NASA sent 2 spacecraft to search for life on Mars – the Viking missions’ findings are still discussed today
  41. How is paint made?
  42. Boosting timber harvesting in national forests while cutting public oversight won’t solve America’s wildfire problem
  43. Complying with Trump administration’s attack on DEI could get employers into legal trouble
  44. George Washington’s worries are coming true
  45. Trump’s deployment of the National Guard to fight crime blurs the legal distinction between the police and the military
  46. Infant mortality rises in states with restrictive abortion laws – new research
  47. An Arkansas group’s effort to build a white ethnostate forms part of a wider US movement inspired by white supremacy
  48. Federal judges are frustrated by defiance from the Trump administration and fuzziness from the Supreme Court
  49. Helping teens navigate online racism − study shows which parenting strategy works best
  50. 3 states push to put the Ten Commandments back in school – banking on new guidance at the Supreme Court