17 November 2013, 07:30 AM ET
NASA's MESSENGER probe will watch as comets Encke and ISON cruise by Mercury on Monday and Tuesday. The back-to-back close passes offer a golden opportunity to study two comets passing close to the sun, researchers say.
15 November 2013, 07:01 PM ET
NASA's MESSENGER spacecraft will have its eyes set on Comet's ISON and Encke as they fly-by Mercury on Nov 18 and 19th, 2013. The Mercury probe will analyze the chemical makeup of the comets and snap pictures.
15 November 2013, 03:19 PM ET
A NASA probe in orbit around Mercury spotted and photographed two comets set for close brushes with the sun this month.
13 November 2013, 05:18 PM ET
This week in the hour before sunrise early morning stargazers will get a double treat: the planet Mercury and two special comets.
08 November 2013, 03:57 PM ET
On 4 October 2013, NASA acquired 560+ images from the MESSENGER spacecraft orbiting Mercury. Hundreds of miles of scorched, asteroid impacted surface have been compiled and set to the 'HI-FI SCI-FI' sounds of Atom Strange.
01 November 2013, 05:06 PM ET
You can expect to see Venus, Jupiter, Mars, Mercury and Saturn this November with only an average telescope.
16 October 2013, 10:58 AM ET
Just like the moon, Mercury is a desolate, rocky and airless body, albeit a bit bigger than Earth's satellite, said Sean Solomon, the principal investigator for NASA's Messenger mission to Mercury.
10 October 2013, 05:08 PM ET
See photos from Mercury astronaut Scott Carpenter's historic Aurora 7 orbital flight on May 24, 1962.
04 October 2013, 03:49 PM ET
The moon will meet up with three different planets in the evening sky during two separate celestial encounters, one on Sunday and the other on Tuesday. The first will involve Saturn and Mercury, while Venus is the moon's partner for the second.
18 September 2013, 07:39 PM ET
Canopus is the second-brightest star in the night sky despite its distance from Earth.
29 August 2013, 05:11 PM ET
NASA's Jet Propulsion Laboratory's former director talks about the mission that completed fly-bys of Venus and Mercury in the 1970's.
31 July 2013, 11:48 AM ET
Saturn, Venus, Mars, Mercury and Jupiter will all be visible in the August night skies, as will the annual Perseid meteors. A number of nebulas will also be easy to find among the constellations.
10 July 2013, 10:00 AM ET
Nearly two dozen museums and other locations around the U.S. (plus one in England) boast real spaceships that have carried astronauts on missions to orbit and the moon.
03 July 2013, 01:01 PM ET
Extreme volcanism may be responsible for Mercury's artificially young surface.
20 June 2013, 01:50 PM ET
Mercury and the solstice make this a can't-miss week in skywatching.
13 June 2013, 01:22 PM ET
The brighter planet Venus leads the way.
07 June 2013, 03:40 PM ET
Pick out three cosmic wonders in the night sky next week.
05 June 2013, 12:52 PM ET
Use brilliant Venus to point the way.
04 June 2013, 10:57 AM ET
Look for Mercury, Venus and Jupiter in close proximity in early June, a rare meteor shower in mid June, and near earth asteroids throughout the month.
26 May 2013, 10:10 AM ET
Jupiter, Mercury and Venus will shine in a cosmic triangle just after sunset tonight (May 26).
24 May 2013, 03:48 PM ET
Three planets are teaming up for a Memorial Day planet parade.
24 May 2013, 07:00 AM ET
A better understanding of exoplanet surfaces would help reveal how common Earth-like planets are in our galaxy.
22 May 2013, 02:05 PM ET
Don't miss your chance to see three bright planets in the night sky.
22 May 2013, 01:37 PM ET
On May 26th three planets, Venus, Jupiter, and Mercury, will appear in a triangular formation on the western horizon just after sunset.
21 May 2013, 09:50 AM ET
Such a tight three-planet grouping won't happen again until 2026.
20 May 2013, 12:13 PM ET
Night-sky-watchers alert: This tri-planetary conjunction will be most apparent from May 26th to June 5th. Here's where to see it best.
20 May 2013, 07:00 AM ET
The iconic city as seen through other planets' air.
20 May 2013, 07:00 AM ET
The project showcases the diversity of worlds in our solar system.
26 April 2013, 07:40 AM ET
NASA's Messenger and Stereo-A space probes were not affected by three back-to-back solar storms, scientists say.
24 April 2013, 05:59 PM ET
The three solar eruptions may deal a glancing blow to NASA's Messenger spacecraft at Mercury.
08 April 2013, 07:00 AM ET
NWA 7325 may be too old to have plausibly come from the solar system's innermost planet.
04 April 2013, 11:46 AM ET
See photos of America's historic spaceport, Kennedy Space Center in Florida
29 March 2013, 12:35 PM ET
The comet ISON is making what astronomers believe is its first trip through the inner solar system, taking a sweltering pass by the sun (making ISON a 'sungrazing' comet) and then back past Earth in December.
28 March 2013, 03:19 PM ET
A newfound meteorite may actually be from Mercury.
19 March 2013, 07:00 AM ET
A look at the robotic spacecraft currently sending data home from beyond Earth orbit.
18 March 2013, 08:21 AM ET
Comet Pan-STARRS has not disappointed astronomers and stargazers after surviving a close brush with the sun in March 2013, NASA says.