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Artist's illustration of the iron rain. Photo: ESO/M. Kornmesser

A telescope in Chile has found a world 640 light-years from Earth that rains liquid iron, adding to the strange tapestry of planets far from our own.

Why it matters: The more that scientists understand about planets circling other stars, the closer they get to finding out just how unique (or common) our solar system — and therefore life — is.

Details: The world, named WASP-76b, is tidally locked to its star, like the Moon is to Earth. The planet’s day side gets so hot that iron evaporates into its atmosphere.

  • Winds blow strong enough on the planet that the iron moves from the day side to the night side of the world where it then cools.
  • As the atmospheric iron cools, it rains onto the cooler night side.
  • The new discovery was made using the ESPRESSO instrument on the Very Large Telescope in Chile.

The big picture: WASP-76b is only one of the many weird exoplanets — planets circling other stars — that are fascinating scientists today.

  • The planet HD 189733b has winds that blow up to 5,400 mph and likely rains glass.
  • Another world, HD 209458b, orbits so close to its star that its thick atmosphere is evaporating and the planet appears to have a tail like a comet stretching out behind it.
  • 55 Cancri e — located about 41 light-years away — is masked by a thick atmosphere that may hide a surface covered entirely in lava.

The bottom line: While many scientists are hunting for another Earth light-years away from our solar system, hundreds of other planets with their own properties are still worthy of study.

Go deeper: Curiosity rover captures a Martian panorama

Go deeper

52 mins ago - World

U.N. envoy resumes push for cease fire in Gaza

Tor Wennesland. Photo by KHALIL MAZRAAWI/AFP via Getty Images

Tor Wennesland, U.N. Special Coordinator for the Middle East Peace Process , has been holding extensive talks with both Israel and Hamas over the past 24 hours in an effort to restore peace, a diplomatic source tells Axios.

Driving the news: The source said Wennesland spoke on Sunday to Israel’s National Security Adviser Meir Ben-Shabbat and other senior Israeli security officials as well as Hamas officials and Egyptian intelligence officials.

4 hours ago - Health

CDC director says politics didn't play a role in abrupt mask policy shift

Centers for Disease Control and Prevention Director Rochelle Walensky told Fox News Sunday that political pressure had nothing to do with the agency's sudden announcement that fully vaccinated Americans can go without masks in most indoor settings.

Why it matters: Emerging evidence shows vaccinated people are less likely to transmit the virus, as COVID-19 cases and deaths drop. But the responsibility to uphold the abrupt policy change falls to individuals and businesses.