The moon makes for an excellent guide to see Mars in the night sky tonight. As the sun sets this evening (Feb. 9), the moon ...

In a celestial event known as a great alignment the five planets will be discernible with the naked eye, but to see Neptune ...

NASA’s Hubble Space Telescope captured a cameo appearance of the tiny moon Phobos on its trek around the Red Planet. This composite image, from NASA Galileo and Mars Global Survey orbiters, of Earth ...

Stargazers will be treated to a dazzling six-planet "alignment" this January.

The good news is, you don’t have to have a telescope to enjoy Mars at opposition! Just look up into the sky after sunset, and Mars will be there. It will be hard to miss! Viewing Mars with ...

The four-planet lineup that began in January concludes by mid- to late February, as Saturn sinks increasingly lower in the sky each night after sunset, according to NASA. While Mercury will briefly ...

Previous research has shown that treadmill running may help slow cartilage breakdown in rodents. The new Johns Hopkins study ...

The moon reached its peak brightness at 8:53 a.m. EST (1353 GMT) on Feb. 12, but local moonrise and moonset times will depend ...

Venus, Jupiter, and Mars dominate the sky. Catch your last views of Saturn as early in the month, the Moon passes in front of ...

The best telescopes allow you to observe this month's full planetary parade more closely and give you a front-row seat to the total lunar eclipse in March. The best telescopes unlock the wonders ...

Five of the brightest planets will be visible to the naked eye. With help, you may even spot Uranus and Neptune.