Astrophysics

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Astrophysicist Michelle Thaller on Understanding Our Place in the Universe

Autodesk vice president Brian Mathews talks with the NASA science communicator about the search for life on other planets and why it’s important

The Milky Way

The Milky Way Ate One of Its Neighbors 10 Billion Years Ago

Star data shows we gobbled up a galaxy called Gaia-Enceladus about 1/4 the size of the Milky Way, leaving behind telltale signs of the merger

We Haven't Been Zapped Out Of Existence Yet, So Other Dimensions Are Probably Super Tiny

In theory, other dimensions aren't big enough to form black holes and consume our universe or it would have happened already

Astronomers Find What May Be First Exomoon—And It's an Absolute Unit

Astronomers suspect that there's Neptune-sized celestial body trailing an exoplanet about 8,000 light years

The Green Bank Telescope pictured—and other radio telescopes like it—are listening for "technosignatures," or possible transmissions from intelligent life forms

In the Search for Aliens, We've Only Analyzed a Small Pool in the Cosmic Ocean

A new study estimates how much of outer space we've scoured for other life and finds we haven't exactly taken a deep dive

Explorers Will Face Dangerous Amounts of Radiation On Their Trip to Mars

New data from the Mars Trace Gas Orbiter shows just the flight there and back alone will expose astronauts to 60 percent the lifetime radiation dose

The Universe's Strongest Material is a Cosmic Lasagna

A new study suggests that the "nuclear pasta" found in neutron stars is 10 billion times stronger than steel

Artist's impression of galactic wind.

Astronomers Spot Galactic Wind From Early Universe

The ejection of molecular gas from a galaxy 12 billion light-years away may have kept an early galaxy from burning out too quickly

Jupiter's Magnetic Field Is Super Weird and Has Two South Poles

Analysis of data from the Juno probe shows the giant planet's field is much different from our own and suggests it has a dissolved core

An artist's rendering of a space elevator.

Japan Takes Tiny First Step Toward Space Elevator

Two mini-satellites will test elevator motion in space as part of research for an elevator between Earth and low orbit

Artist's rendering of COSMOS-AzTEC-1.

Monster Galaxy Churns Out 1,000 Times As Many Stars As Our Own

COSMOS-AzTEC-1 is almost 13 billion years old highly organized but unstable and could shed light on galaxy evolution

Andromeda

The Andromeda Galaxy Ate The Milky Way's Lost Sibling

New simulations show Andromeda absorbed the large galaxy M32p about 2 billion years ago

Jupiter Officially Has 12 New Moons

The new satellites are mostly tiny and include one oddball that is on a collision course with some of the 78 other moons orbiting the planet

Our Galaxy Is Really Greasy and Smells Like Moth Balls

A new study estimates that a quarter to half the carbon in interstellar space is in the form of greasy aliphatic carbon

Dancing during the last day of Hatun Puncha.

Andean Solstice Celebrations Capture the Wondrous Churn of Spacetime

Exploring the similarities and differences between Indigenous and Western cosmologies

A 2018 colorized image of Jupiter's south pole created by citizen scientist Gabriel Fiset, using data from NASA's Juno spacecraft.

How Jupiter May Have Gifted Early Earth With Water

A new model of the solar system suggest we have gas giants to thank for our watery world

Stephen Hawking's memorial stone in Westminster Abbey.

A Message From Stephen Hawking Is On Its Way to a Black Hole

After his ashes were interred at Westminster Abbey, a musical composition and "message of hope" were broadcast toward 1A 0620-00, the nearest black hole

The oxygen distribution from MACS1149-JD1 appears green in this ALMA image.

Astronomers Find Signature From the Universe's Earliest Known Stars

The first lights may have winked to life just 250 million years after the Big Bang

Joe, the "fat boy" from the Pickwick Papers.

The Case for Charles Dickens, the Science Communicator

A new exhibition dives into the Victorian novelist's passion for science

Venus shines brightly in the distance in this picture taken on the International Space Station.

Venus and Jupiter May Meddle With Earth's Orbit and Climate

In 405,000-year cycles, the tug of nearby planets causes hotter summers, colder winters and drier droughts on our home planet

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