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Ancient grains of dust from space can be found on Earth − and provide clues about the life cycle of stars

  • Written by Sachiko Amari, Research Professor of Physics, Arts & Sciences at Washington University in St. Louis
imageThe dark areas in this image of the Carina Nebula are molecular clouds.NASA, ESA, N. Smith (U. California, Berkeley) et al., and The Hubble Heritage Team (STScI/AURA)

In space, there are clouds that contain gas and dust ejected from stars. Our solar system was formed 4.6 billion years ago from such a molecular cloud. Most of these dust grains were...

Read more: Ancient grains of dust from space can be found on Earth − and provide clues about the life cycle...

Heat risk isn’t just about the highs: Large daily temperature swings can harm human health – maps show who is affected most

  • Written by Shengjie Liu, Ph.D. Candidate in Spatial Sciences, USC Dornsife College of Letters, Arts and Sciences
imageLow-income neighborhoods with lots of concrete and few trees can heat up faster than surrounding areas.AP Photo/Richard Vogel

This summer has shown how quickly high temperatures can pose serious health risks, with record-breaking heat waves claiming thousands of lives around the world.

However, it’s not just high and low temperatures that...

Read more: Heat risk isn’t just about the highs: Large daily temperature swings can harm human health – maps...

Tropical Storm Debby stalls along the Carolinas, bringing days of heavy rain and flooding – a climate scientist explains why

  • Written by Mathew Barlow, Professor of Climate Science, UMass Lowell
imageFirefighters in Savannah, Ga., carry food to residents in a neighborhood cut off by Tropical Storm Debby's floodwater on Aug. 6, 2024.AP Photo/Stephen B. Morton

Tropical Storm Debby was moving so slowly, Olympians could have outrun it as it moved across the Southeast in early August 2024. That gave its rainfall time to deluge cities and farms over...

Read more: Tropical Storm Debby stalls along the Carolinas, bringing days of heavy rain and flooding – a...

Tropical Storm Debby’s stalling brought days of heavy rain and flooding – a climate scientist explains what happened

  • Written by Mathew Barlow, Professor of Climate Science, UMass Lowell
imageFirefighters in Savannah, Ga., carry food to residents in a neighborhood cut off by Tropical Storm Debby's floodwater on Aug. 6, 2024.AP Photo/Stephen B. Morton

Tropical Storm Debby was moving so slowly, Olympians could have outrun it as it moved across the Southeast in early August 2024. That gave its rainfall time to deluge cities and farms over...

Read more: Tropical Storm Debby’s stalling brought days of heavy rain and flooding – a climate scientist...

Multiple goals, multiple solutions, plenty of second-guessing and revising − here’s how science really works

  • Written by Soazig Le Bihan, Professor of Philosophy, University of Montana
imageIf your mental image of a scientist looks like this, you're due for an update.aluxum/E+ via Getty Images

A man in a lab coat bends under a dim light, his strained eyes riveted onto a microscope. He’s powered only by caffeine and anticipation.

This solitary scientist will stay on task until he unveils the truth about the cause of the dangerous...

Read more: Multiple goals, multiple solutions, plenty of second-guessing and revising − here’s how science...

AI helps lighten the load on the electric grid – without skimping on people’s energy use

  • Written by Zoltan Nagy, Assistant Professor of Civil, Architectural and Environmental Engineering, The University of Texas at Austin
imageSmart thermostats, batteries and AI could give people the best of both worlds: comfort and efficiency.RgStudio/E+ via Getty Images

My colleagues and I have developed an artificial intelligence system that helps buildings shift their energy use to times when the electric grid is cleaner.

I’m an engineer who studies and develops smart buildings....

Read more: AI helps lighten the load on the electric grid – without skimping on people’s energy use

A common parasite could one day deliver drugs to the brain − how scientists are turning ‘Toxoplasma gondii’ from foe into friend

  • Written by Bill Sullivan, Professor of Pharmacology and Toxicology, Indiana University
image_Toxoplasma_ is often transmitted to people from contaminated food or cat feces. Dr_Microbe/iStock via Getty Images Plus

Parasites take an enormous toll on human and veterinary health. But researchers may have found a way for patients with brain disorders and a common brain parasite to become frenemies.

A new study published in Nature Microbiology ha...

Read more: A common parasite could one day deliver drugs to the brain − how scientists are turning...

Bangladesh’s protests explained: What led to PM’s ouster and the challenges that lie ahead

  • Written by Tazreena Sajjad, Senior Professorial Lecturer of Global Governance, Politics and Security, American University School of International Service
imageAnti-government protesters celebrate the resignation of Bangladeshi Prime Minister Sheikh Hasina.Sazzad Hossain/SOPA Images/LightRocket via Getty Images

Bangladesh’s embattled prime minister, Sheikh Hasina, fled the country on Aug. 5, 2024, after weeks of protests that have resulted in scores of deaths.

Her departure is a landmark moment, but...

Read more: Bangladesh’s protests explained: What led to PM’s ouster and the challenges that lie ahead

Walz pick turns focus on what a VP brings to White House – 3 essential reads

  • Written by Howard Manly, Race + Equity Editor, The Conversation US
imageMinnesota Gov. Tim Walz speaks at a Biden-Harris campaign press conference on July 17, 2024, in Milwaukee, Wis. Jim Vondruska/Getty Images

Much is made of vice presidential choices, and Democratic presidential nominee Kamala Harris’ selection of Minnesota Gov. Tim Walz is no different.

Well known for attacking Donald Trump and JD Vance as...

Read more: Walz pick turns focus on what a VP brings to White House – 3 essential reads

Chang'e 6 brought rocks from the far side of the Moon back to Earth − a planetary scientist explains what this sample could hold

  • Written by Jeffrey Gillis-Davis, Research Professor of Physics, Arts & Sciences at Washington University in St. Louis
imageThe Chang'e 6 minirover Weibo took this image of the lander by autonomously driving away and photographing it. CNSA

China achieved a historic feat by bringing back the first-ever sample from the lunar far side in June 2024. It’s moon lander, Chang'e 6, used a robotic scoop and drill to collect approximately 5 pounds (2 kilograms) of rocks...

Read more: Chang'e 6 brought rocks from the far side of the Moon back to Earth − a planetary scientist...

More Articles ...

  1. Readers trust journalists less when they debunk rather than confirm claims
  2. Assassination is always unlawful − regardless of who is killed and on whose orders
  3. Brain implants to restore sight, like Neuralink’s Blindsight, face a fundamental problem − more pixels don’t ensure better vision
  4. Kamala Harris’ identity as a biracial woman is either a strength or a weakness, depending on whom you ask
  5. Grassroots efforts to increase voting are gaining momentum in these states, even as other states make voting harder
  6. Attention, jittery investors: Stop panicking … this is what a soft landing should look like
  7. Ancient poppy seeds and willow wood offer clues to the Greenland ice sheet’s last meltdown and a glimpse into a warmer future
  8. Love for cats lures students into this course, which uses feline research to teach science
  9. Stuck bridges, buckling roads − extreme heat is wreaking havoc on America’s aging infrastructure
  10. How can there be ice on the Moon?
  11. Why are migraines worse during your period? Research in mice points to a hormone called progesterone, offering a new treatment target
  12. How people with disabilities got game − the surprisingly long history of access to arcade and video sports
  13. Racism and discrimination lead to faster aging through brain network changes, new study finds
  14. Menstrual cycle is a vital sign and important indicator of overall health − 2 reproductive health experts explain
  15. Arab Druze community in mourning after tragic rocket strike on Golan Heights soccer field − highlighting challenges for Druze within Israel and the region
  16. In ‘bamboo diplomacy,’ late Vietnam leader Nguyen Phu Trong left a path for smaller nations to navigate great-power rivalries
  17. Democratic Party’s choice of Harris was undemocratic − and the latest evidence of party leaders distrusting party voters
  18. I researched the dark side of social media − and heard the same themes in ‘The Tortured Poets Department’
  19. AIs encode language like brains do − opening a window on human conversations
  20. Gov. Josh Shapiro has a reputation for getting things done in Pennsylvania – but not necessarily things all Democrats like
  21. ‘House of the Dragon’ was inspired by the chaos of the Middle Ages, a world without law and order
  22. Psilocybin legislation is helping psychedelic drugs make a comeback – a drug researcher explains the challenges they face
  23. Trump supporters wasted no time in claiming Kamala Harris is ineligible to be president, but they’re wrong
  24. CAPTCHAs: The struggle to tell real humans from fake
  25. The French baron who revived the Olympics believed they were more than sport – they were a religion of perfection and peace
  26. Missy Elliott tours as a headliner − and it’s about time
  27. Sustainability and resilience: What do they mean, and how do they matter for policy?
  28. Olympic arson attacks highlight growing danger of low-tech terrorism on public transit systems
  29. 7-nation prisoner swap shows how diplomacy, not law, governs exchanges
  30. Oceans without sharks would be far less healthy – new research
  31. Wildfires can create their own weather, further spreading the flames − an atmospheric scientist explains how
  32. Who will win in Arizona in November? It’s a toss-up − like it has been for years
  33. Students gain confidence in US democracy by participating in elections and campaigns for their homework
  34. Inside the dark world of dognapping
  35. Wildfires can create their own weather, including tornado-like fire whirls − an atmospheric scientist explains how
  36. Menopause increases your risk of STIs due to how aging changes your body
  37. Robocars promise to improve traffic even when most of the cars around them are driven by people, study finds
  38. A new ‘guest star’ will appear in the sky in 2024 − a space scientist explains how nova events work and where to look
  39. Massive protests erupt again over disputed Venezuelan elections – but they look different this time
  40. With Hezbollah and Hamas assassinations, Netanyahu shows willingness to risk regional war for political survival
  41. Iceland’s recent volcanic eruptions driven by pooling magma are set to last centuries into the future
  42. This Supreme Court has redefined the meaning of corruption
  43. NRA legal judgment bans LaPierre but could signal the end of gun group’s fight with New York authorities
  44. Online fundraising may require different strategies for different devices − new research
  45. Israel’s military starts drafting ultra-Orthodox Jews – but the battle over serving ‘the army of God’ vs. the army of the state isn’t over, and points to key questions for the country’s future
  46. Chinese warships off Alaska and Cambodia highlight the role of near and far waters in sea power dominance
  47. Harris brings joy to the presidential campaign − and GOP mockery of ‘laughing Kamala’ is nothing new to Black women
  48. Filling the silences in family stories − how to think like a historian to uncover your family’s narrative
  49. Offshore wind farms connected by an underwater power grid for transmission could revolutionize how the East Coast gets its electricity
  50. Voters become more polarized when presidential candidates take positions on issues in K-12 education