Astronomy

Astronomy

Color differences could recalibrate cosmic acceleration rate

Color differences in a class of supernovas could lower estimates of how much dark energy is in the universe.

Astronomy

A look back in time reveals Milky Way’s evolution

A sample of galaxies covering 11 billion years of cosmic history helps astronomers document how the Milky Way evolved.

Astronomy

X-rays offer early warning for solar flares

X-rays shot out by the sun foretell the intensity of an upcoming solar flare, new research suggests.

Astronomy

Ringing rings reveal Saturn’s innards

Scientists propose that exotic structures are buried within Saturn, based on analyses of subtle vibrations in the planet’s rings.

Astronomy

Galactic split provides clue to dark matter mystery

An oddly divided galaxy may provide the first evidence that dark matter particles interact through a force other than gravity.

Astronomy

Map pinpoints location of invisible dark matter

A new map shows that dark matter is concentrated in regions that contain a lot of ordinary matter in the form of galaxy clusters.

Astronomy

Map pinpoints location of invisible dark matter

Dark matter can’t be seen, but a new map shows where it’s hiding. The map confirms that the mysterious matter is concentrated in regions that contain a lot of ordinary matter in the form of galaxy clusters.

Astronomy

Afterglow alerts astronomers to gamma-ray burst

Astronomers have spotted the remnant glow from a gamma-ray burst without first observing its beam of high-energy gamma rays.

Astronomy

Source of puzzling cosmic signals found — in the kitchen

One type of radio burst has a pretty mundane origin: prematurely opened microwave ovens.

Astronomy

Cyanides around young star signal complex organic chemistry

Abundances of cyanide compounds around a young star match those found in comets in our solar system.

Science & Society

One anniversary to celebrate, one to contemplate

In this issue, both feature articles focus on anniversaries, though of two very different kinds.

Astronomy

Celebrating 25 years of the Hubble Space Telescope

The Hubble Space Telescope has served for more than two decades as the sharpest eyes ever to peer into the universe.