Posts by 

Deborah Byrd

California superbloom from space

Thanks to years of drought followed by above-average rainfall, California is enjoying a fantastic wildflower superbloom in 2017. See before-and-after space images here.

A star whose magnetic field flipped

Tau Boötis was the first star, other than our sun, ever seen to undergo a magnetic field reversal. This post also includes 2 great videos about our sun's magnetic reversals.

First-ever image of dark matter?

The scientists say their image, which combines images from more than 23,000 galaxy pairs, confirms dark matter's existence. Will other astronomers agree?

Jupiter has a Great Cold Spot

The newly discovered Great Cold Spot on Jupiter rivals the scale of the planet's Great Red Spot. It's thought to be driven by powerful energies from auroras at Jupiter's poles.

Sun pillar over England

A sun pillar, visible earlier this month before and up until dawn, from the Northumberland coast in northeast England.

New views of Uranus’ auroras and rings

NASA just released a new composite image combining Voyager 2 and Hubble data to show both the rings and auroras of Uranus.

Southern lights over South Pole

Hunter Davis sent these photos from Antarctica this morning of the aurora australis - or southern lights - now appearing over Earth's South Pole.

The perilous process of star birth

It isn't a supernova or dying star. It's an explosion during star birth and provides insights into the sometimes-fierce relationship among sibling stars.

Watch for Venus before dawn

While watching Jupiter and the moon around April 9-11, don't forget Venus! It passed between us and the sun on March 25 and now blazes in the east before dawn.

Jupiter and its moons

The 4 largest moons of Jupiter - called the Galilean satellites - are Io, Europa, Ganymede and Callisto. Recent photos here.