Posts by 

Deborah Byrd

See it! Images of comet 46P/Wirtanen

Look here for photos and video of 2018's Christmas comet and brightest comet, 46P/Wirtanen.

Mars over a waterfall in Turkey

Basri Seckin said he set out to capture the Milky Way, but clouds got in the way. Then he realized he had this image of Mars.

Himalayas at sunrise

Sudip Aich captured this image in late November from Sandakphu, a high peak in the Himalayas, surrounded by much-higher ones.

What will the sun do next?

Many have predicted a weak sunspot cycle in the years ahead, but new work from India suggests otherwise. The work dashes speculations of a sun-induced global cooling of Earth’s climate in the coming decade.

Saturday’s young moon and Saturn

Wow! We weren't sure any of you would catch the moon and Saturn this weekend … but some of you did. Thanks to all who submitted.

Sunshine, blowing snow and a sundog

Sundogs - aka parhelia - are caused by ice crystals in the air. They're most easily seen when the sun is low.

Mars and Neptune, over-exposed

The bright planet Mars and faint planet Neptune are in conjunction now, near each other on our sky's dome. Here's a fanciful image and a more realistic one.

A few people caught Mercury!

We weren't sure if any of you would catch Mercury so near the sunrise glare. But you did!

A measurement of all the starlight ever produced

How much starlight has our universe produced? According to a new study, stars have radiated 4x1084 photons since the start of the universe 13.7 billion years ago. That's the number 4 with 84 zeros behind it.

The Double Cluster in Perseus

The Double Cluster in Perseus consists of 2 star clusters, each containing supergiant suns. Individually, the clusters are known as h and Chi Persei.