Category Astronomy/Space

Lunar Samples Solve Mystery of the Moon’s Supposed Magnetic Shield

Three samples of lunar glass cast shadows on a white surface and dark background.
The lunar glass samples tested by Rochester scientists were gathered during NASA’s 1972 Apollo 16 mission. (University of Rochester photo / J. Adam Fenster)

Research may help inform a new wave of lunar experiments based on data that will be gathered by the Artemis mission. In 2024, a new age of space exploration will begin when NASA sends astronauts to the moon as part of their Artemis mission, a follow-up to the Apollo missions of the 1960s and 1970s.

Some of the biggest questions that scientists hope to explore include determining what resources are found in the moon’s soil and how those resources might be used to sustain life.

In a paper published in the journal Science Advances, researchers at the University of Rochester, leading a team of colleagues at seven other institut...

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Nearby Star resembles ours in its youth

An artist concept of a coronal mass ejection hitting young Earth’s weak magnetosphere.
Credits: NASA/GSFC/CIL

New research led by NASA provides a closer look at a nearby star thought to resemble our young Sun. The work allows scientists to better understand what our Sun may have been like when it was young, and how it may have shaped the atmosphere of our planet and the development of life on Earth.

Many people dream of meeting with a younger version of themselves to exchange advice, identify the origins of their defining traits, and share hopes for the future. At 4.65 billion years old, our Sun is a middle-aged star. Scientists are often curious to learn exactly what properties enabled our Sun, in its younger years, to support life on nearby Earth.

Without a time machine to trans...

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Hubble spots Squabbling Galactic Siblings

Text credit: European Space Agency (ESA)

A dramatic triplet of galaxies takes center stage in this image from the NASA/ESA Hubble Space Telescope, which captures a three-way gravitational tug-of-war between interacting galaxies. This system—known as Arp 195—is featured in the Atlas of Peculiar Galaxies, a list which showcases some of the weirder and more wonderful galaxies in the universe.

Observing time with Hubble is extremely valuable, so astronomers don’t want to waste a second. The schedule for Hubble observations is calculated using a computer algorithm which allows the spacecraft to occasionally gather bonus snapshots of data between longer observations.

This image of the clashing triplet of galaxies in Arp 195 is one such snapshot.

Extra observations such as these ...

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Why is this Weird, Metallic Star Hurtling Out of the Milky Way?

Credit: Caltech/Zwicky Transient Facility

Astronomers analyzed light data from a piece of supernova shrapnel to gain clues about where it came from. About 2,000 light-years away from Earth, there is a star catapulting toward the edge of the Milky Way. This particular star, known as LP 40−365 is one of a unique breed of fast-moving stars — remnant pieces of massive white dwarf stars — that have survived in chunks after a gigantic stellar explosion.

“This star is moving so fast that it’s almost certainly leaving the galaxy…[it’s] moving almost two million miles an hour,” says JJ Hermes, Boston University College of Arts & Sciences assistant professor of astronomy...

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