Sometimes the Sun’s surface becomes a whirlwind of activity. Pictured is a time-lapse video of the Sun’s surface taken over a two hour period in early May, run both forwards […]

What’s happened to Mars? In 2001, Mars underwent a tremendous planet-wide dust storm — one of the largest ever recorded from Earth. To show the extent, these two Hubble Space […]

It’s storm season on Mars. Dusty with a chance of dust is the weather report for Gale crater as a recent planet-scale dust storm rages. On June 10 looking toward […]

Engines blazing, a large rocket bids farewell to this little planet. Of course, the little planet is really planet Earth and the large rocket is a Soyuz-FG rocket. Launched from […]

The five naked-eye planets, Mercury, Venus, Mars, Jupiter and Saturn, have been seen since ancient times to wander the night skies of planet Earth. So it could be remarkable that […]

What kind of rainbow is this? In this case, no rain was involved — what is pictured is actually a red cloudbow. The unusual sky arc was spotted last month […]

How big is our Sun compared to other stars? In dramatic and popular videos featured on YouTube, the relative sizes of planets, stars, and even the universe are shown from […]

To some, it may look like a cat’s eye. The alluring Cat’s Eye nebula, however, lies three thousand light-years from Earth across interstellar space. A classic planetary nebula, the Cat’s […]

Mars shines brightly now in planet Earth’s sky. Seen with a yellowish hue it rises over the hills and far away in this serene night skyscape, a countryside panorama recorded […]

Mars shines brightly now in planet Earth’s sky. Seen with a yellowish hue it rises over the hills and far away in this serene night skyscape, a countryside panorama recorded […]