One of the great unsolved problems in modern planetary science is written on the surface of Mars. Mars has canyons that were ...

We’re also losing evening daylight. The sun set at 6:52 p.m. on the 28th of June, which is the latest sunset time of the year ...

Venus continues to be the “Morning Star” in the east before dawn, albeit it has become dimmer — but still bright — as it ...

Mercury is the month's highlight, reaching greatest elongation July 4. Also on show in the Southern Hemisphere: Mars, Saturn, ...

The second half of the 19th century was a particularly interesting time to imagine Mars. This was a period during which the ...

This 4K HDR sunset video invites you to experience Manila’s Pasig River like never before. As the sun sets over the urban ...

Stargazing in July hopefully promises warm nights in Wyoming. The highlight of July evenings is the prominent band of the Milky Way arcing across the dark skies. Along the Milky Way, you’ll spot the ...

Stargazers in the U.S. will find the slender form of the crescent moon roughly 20 degrees above the western horizon right at ...

Skywatchers around the world have the perfect opportunity this weekend to witness a dazzling celestial show featuring the ...

Having a good phone app is a lot of fun and quite helpful in verifying stars, asterisms, and constellations. Most apps will ...