Posts by 

Deborah Byrd

Hurricane Odile

Hurricane Odile tied Olivia (1967) as the strongest hurricane to make landfall in Baja California in the satellite era.

Favorite photos of September 12 aurora

Two powerful storms on the sun this week resulted in beautiful displays of the aurora borealis, or northern lights, that dipped down as far as the northern U.S.

First evidence for water-ice clouds outside our solar system

The first evidence for water-ice clouds on an object beyond our solar system. It's a brown dwarf, one of our closest neighbors, only 7 light-years away.

Astronomers solve 20-year-old quasar mystery

New works suggests most observed quasar phenomena depend on two things: how efficiently a central black hole is being fed and the astronomer's viewing orientation.

Harvest Moon trilogy

This past full moon was the Northern Hemisphere's Harvest Moon, known for appearing entirely or nearly full for several nights in a row.

Home is behind, the world ahead

A mesmerizing view down a long, straight stretch of road, with a wild sky above.

Why our Milky Way galaxy has fewer satellites than expected

European cosmologists and particle physicists come together to tweak an accepted model of how cold dark matter helps build galaxies in our universe.

A preliminary map of different regions on Rosetta’s comet

The comet turns out to be a unique, multifaceted world. We now know comets can have cliffs, depressions, craters, boulders or even parallel grooves.

Moonlets are born and quickly die in Saturn’s F ring

Tiny moons, no bigger than large mountains, may coalesce and collide with the densest part of the ring, creating luminous knots. But the moons don't last long.

Campfire under Milky Way at Mount Bromo

Astrophotographer Justin Ng has just returned from Mount Bromo. Here's what a night on an active volcano in Indonesia looks like.