Milky Way's origins are not what they seem

In a first-of-its-kind analysis, Northwestern University astrophysicists have discovered that, contrary to previously standard lore, up to half of the matter in our Milky Way galaxy may come from distant galaxies. As a result, ...

A simulation of the universe with realistic galaxies

An international team of astronomers, based at the Universities of Leiden in the Netherlands and Durham in the UK and, led by professor Joop Schaye (Leiden University), developed a simulation of the universe in which realistic ...

Galactic wind provides clues to evolution of galaxies

The Cigar Galaxy (also known as M82) is famous for its extraordinary speed in making new stars, with stars being born 10 times faster than in the Milky Way. Now, data from the Stratospheric Observatory for Infrared Astronomy, ...

Star birth with a chance of winds?

The lesser-known constellation of Canes Venatici (The Hunting Dogs), is home to a variety of deep-sky objects—including this beautiful galaxy, known as NGC 4861. Astronomers are still debating on how to classify it. While ...

Saturn's radiation belts: A stranger to the solar wind

The radiation belts of Earth and Saturn differ more strongly than previously assumed. In these belts, very energetic particles, such as electrons and protons, move around the planet at high velocities - captured by its magnetic ...

Characterizing the Moon's radiation environment

The radiation environment near the Moon could be damaging to humans and electronics on future missions. To characterize this potentially hazardous environment, the Cosmic Ray Telescope for the Effects of Radiation (CRaTER) ...

page 1 from 3