29 May 2012, 01:05 PM ET
See images of the Transit of Venus across the sun as witnessed by people throughout history.
29 May 2012, 10:14 AM ET
The transit of Venus across the sun has a long astronomical legacy.
29 May 2012, 06:00 AM ET
Asteroid and comet impacts could have raised Mars' temperature enough to support liquid water.
23 May 2012, 01:53 PM ET
By the end of the 19th Century, the relative spacing of the planets was known but the absolute distance between them was not. This scientific mystery spanning centuries was finally solved by accurate measurement of Venus Transits of 1874 and 1882.
23 May 2012, 01:43 PM ET
Offering un-obstructed views of the Sun from horizon to horizon and superb weather, Hawaii was perfect for astronomers to view Venus Transits in 1874 and 1882. Such observations accurately determined the scale of the Solar System for the first time.
23 May 2012, 01:34 PM ET
Sky-watching, navigation and the poetry of the cosmos runs deep in Hawaiian culture. Now Hawaiian elementary school students are diving deeply into astronomy’s the history and future through the Venus Transit.
23 May 2012, 01:07 PM ET
In 1882, scientists determined Earth’s distance from the Sun by measuring the Venus Transit. This process, now applied in NASA orbiting Kepler Mission, discovers new planets by measuring the light-curve of transit across other stars faraway.
23 May 2012, 12:29 PM ET
Hawaii is a metaphor for Earth’s place in the cosmos. Native Hawaiians have long recognized the sky’s spiritual and intellectual value. Hawaii hosted observers of the Venus Transits of 1874 & 1882; and it warmly supports astrophysicists today.
23 May 2012, 11:47 AM ET
On June 5th or 6th, 2012 (depending on your global location) Venus appeared to cross the face of the Sun for the final time until 2117. See this magnificent event and discover the history and science of the Transit of Venus.
21 May 2012, 07:00 AM ET
Venus will trek across the sun's face on June 5, marking the last such transit until 2117.
16 May 2012, 01:01 PM ET
Watching Venus trek across the sun's face could help planet hunters hone their techniques.
14 May 2012, 03:15 PM ET
Skywatchers in New York safely observed the sun in April to preview for a solar eclipse and Venus transit.
14 May 2012, 07:00 AM ET
Scientists with NASA's Solar Dyamics Observatory probe will head to Land of the Midnight Sun next month.
12 May 2012, 08:06 AM ET
From the winner of a seat to space to photos of the supermoon sinking, it's been a busy week in space.
10 May 2012, 04:00 PM ET
Avid astrophotographer Ajay Talwar snapped a stunning photo series of the moon and Venus over Delhi, India.
07 May 2012, 03:24 PM ET
After the June 5/6 event, the next trek of Venus across the sun's face comes in 2117.
07 May 2012, 07:36 AM ET
From the bright supermoon to earth-like alien planets munching on stars, it's been a busy week in space.
04 May 2012, 03:04 PM ET
The goal is to gauge the composition of Venus' atmosphere.
04 May 2012, 12:04 PM ET
Starting from the surface of the morning star and ending with a view from above Earth. The transit will become reality for human eyes on June 5, 2012 for the last time until 2117.
01 May 2012, 02:32 PM ET
Highlights of the month include the Eta Aquarid meteor shower, which peaks on May 6th and an annular solar eclipse that will be seen in the western United States. Venus, Saturn and Mars are part of the planetary spectacle in the night sky.
30 April 2012, 06:00 AM ET
Skywatcher and photographer Stefano De Rosa snapped this view of his three children enjoying the night sky.
27 April 2012, 01:40 PM ET
Venus reaches maximum brightness this week, making it a must-see for skywatchers.
27 April 2012, 09:23 AM ET
The president took some time to gaze skyward this week at Colorado's Buckley Air Force Base.
25 April 2012, 11:27 AM ET
See these amazing skywatching photos of Venus and the crescent moon in April 2012.
22 April 2012, 07:27 AM ET
From the transfer of shuttle Discovery to its new home to a SPACE.com tee up in a balloon, it's been a busy week in space.
15 April 2012, 07:27 AM ET
From an expedition to explore auroras to sun's sibling stars, it's been a busy week in space.
09 April 2012, 05:00 PM ET
Astrophotographer captures beautiful image of the moon and Venus in conjunction over Gobustan National Park in Azerbaijan.
07 April 2012, 06:12 AM ET
From cabs in space to alien earths, it's been a busy week in space. Vote for the week's best space story.
06 April 2012, 01:19 PM ET
Venus and Jupiter appeared to come closer this year and then passed each other on March 13.
05 April 2012, 02:01 PM ET
Northern and Southern Lights may occur on Venus, too.
04 April 2012, 12:00 PM ET
Jupiter, the moon and Venus align over a shining castle in skywatcher’s photo.
02 April 2012, 07:00 AM ET
It's the last chance to see a Venus transit until 2117.
30 March 2012, 03:24 PM ET
The Morning Star appears to pass across the face of the Sun at regular intervals of 8, 121.5 and 105.5 years. In 2004, NASA's TRACE spacecraft captured the event and in June 2012 humans will see the last transit before the pair in 2117 and 2125.
30 March 2012, 01:41 PM ET
Get the latest news on the skywatching event of the year: the 2012 transit of Venus across the sun.
30 March 2012, 12:42 PM ET
See 52 views of the amazingly rare Venus transit of the sun of 2004 as seen by scientists and skywatchers around the world.
30 March 2012, 12:11 PM ET
Venus and the Pleiades star cluster will perform a cosmic sister act on April 3.