Japan Collects Asteroid Dust

"A Japanese space probe has landed in the Australian outback after a seven-year voyage to an asteroid, safely returning a capsule containing a unique sample of dust," says Reuters.

"A Japanese space probe has landed in the Australian outback after a seven-year voyage to an asteroid, safely returning a capsule containing a unique sample of dust," says Reuters. "Scientists hope it could unlock secrets of the solar system's formation and shed light on the risk to Earth from asteroid impacts. NASA scientist Paul Abell, who monitored the return, said Hayabusa was significant in terms of planetary defense, bearing in mind an asteroid impact is thought to have wiped out the dinosaurs. Knowing the physical characteristics of near-Earth asteroids would be useful 'in case we see something coming at us in the future', he said. As leftover matter from the building of the solar system, he added, asteroids could also tell us about its formation and possibly the origins of life."

Is life after 75 worth living? This UPenn scholar doubts it.

What makes a life worth living as you grow older?

Culture & Religion
  • Dr. Ezekiel Emanuel revisits his essay on wanting to die at 75 years old.
  • The doctor believes that an old life filled with disability and lessened activity isn't worth living.
  • Activists believe his argument stinks of ageism, while advances in biohacking could render his point moot.
Keep reading Show less

Brazil's Amazon fires: How they started — and how you can help.

The Amazon Rainforest is often called "The Planet's Lungs."

NASA
Politics & Current Affairs
  • For weeks, fires have been burning in the Amazon rainforest in Brazil, likely started by farmers and ranchers.
  • Brazil's president, Jair Bolsonaro, has blamed NGOs for starting the flames, offering no evidence to support the claim.
  • There are small steps you can take to help curb deforestation in the Amazon rainforest, which produces about 20 percent of the world's oxygen.
Keep reading Show less

Study: Sending emojis is linked to scoring more dates, sex

Emojis might contain more emotional information than meets the eye.

Pixabay
Sex & Relationships
  • A new study shows that people who frequently used emojis in text messages with potential dates engaged in more sexual activity and had more contact with those dates.
  • However, the study only shows an association; it didn't establish causality.
  • The authors suggest that emojis might help to convey nuanced emotional information that's lacking in strictly text-based messaging.
Keep reading Show less