- Space
- By Laura Sinpetru
- February 18th, 2015
70,000 Years Ago, a Star Brushed Past Our Solar System
In fact, astronomers believe that this star flew straight through the Oort Cloud that marks the Solar System's edge
- Space
- By Laura Sinpetru
- October 10th, 2014
One-in-a-Million-Years Event: On October 19, a Comet Will Visit Mars
The comet, dubbed Siding Spring, is expected to get as close as 87,000 miles (139,500 kilometers) from the Red Planet
- Space
- By Tudor Vieru
- March 27th, 2014
Solar System Reveals New Dwarf Planet
This discovery brings the limits of the solar system back into focus
- Space
- By Tudor Vieru
- March 16th, 2012
Jupiter Is Both Earth's Friend and Foe
The planet dictates our chances of being hit by comets
- Space
- By Tudor Vieru
- February 29th, 2012
The Sun Is a Comet Thief
It may have stolen many Oort Cloud objects from other stars
- Space
- By Tudor Vieru
- March 12th, 2010
Our Solar System Will Be Struck by an Orange Dwarf
But we still have a lot of time ahead
- Space
- By Tudor Vieru
- January 4th, 2010
Outer Solar System Could House Earth-Sized Planets
But telescopes currently have no chance of seeing them
- Space
- By Tudor Vieru
- August 19th, 2009
The Challenges of Navigating a Solar Sail
More than Newtonian physics is needed
- Space
- By Tudor Vieru
- July 31st, 2009
We Have Nothing to Fear from Inner Oort Cloud Comets
The risk of them hitting us is minimal
- Space
- By Dan Talpalariu
- December 12th, 2008
Galactic Gravity Sends Comets Our Way
Star smashing Oort cloud comets are not that dangerous