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Astronomy

November 19, 2017
Enjoy the view of Earth from the cupola of the International Space Station. Google maps
ASTRO BOB: Don your spacesuit, we're going for a ride
November 19, 2017 - 5:52am
October 22, 2017
Astronomers not only saw gravitational waves and gamma rays from the event, but also visible and near-infrared light as shown in these images made with the Swope and Magellan telescopes. Credit: 1M2H/UC Santa Cruz and Carnegie Observatories/Ryan Foley
AstroBob: Neutron stars' death merger rattles the fabric of spacetimes
October 22, 2017 - 3:57pm
September 10, 2017
In this view, we’re looking straight down from above the Milky Way galaxy’s plane at several of its spiral arms including the Orion Arm, home to Orion and our solar system. Credit: R. Hurt
AstroBob: It's September, time for my Orion fix
September 10, 2017 - 12:43pm
September 3, 2017
In this artist's depiction, NASA’s Cassini spacecraft is shown during its Sept. 15 plunge into Saturn’s atmosphere. Cassini will use its thrusters to keep its antenna pointed at Earth for as long as possible while sending back unique data about Saturn’s atmosphere. Credit: NASA/JPL-Caltech
ASTROBOB: T-minus 12 days: Cassini keeps opening our eyes
September 3, 2017 - 8:30am
August 19, 2017
Bruce Jensen, biology professor at the University of Jamestown, wears a special pair of sunglasses demonstrating a proper viewing of the eclipse set for Monday. Jensen will be traveling to Nebraska to take in the total solar eclipse. John M. Steiner / The Sun
Eclipse fever: Jamestown man traveling to Nebraska to see eclipse totality
August 19, 2017 - 6:44am
August 17, 2017
How to safely capture the 2017 eclipse on your phone
August 17, 2017 - 1:37pm
A pinhole projector using two paper plates saves your eyeballs from the glare of the solar eclipse. Alexandra Floersch / The Forumplay button
3 easy ways to view the eclipse while protecting your eyes
August 17, 2017 - 9:34am
Path of the eclipse: When and where to get the best view
August 17, 2017 - 9:27am
Path of the eclipse: When and where to get the best view
August 17, 2017 - 9:27am
August 13, 2017
A student looks at the partially eclipsed sun in northern England on March 20, 2015 using a pair of eclipse glasses. Credit: Reuters
AstroBob: How dark will it get during total eclipse?
August 13, 2017 - 8:30am
August 6, 2017
Earth has several different layers: crust, mantle and core. If you were to somehow safely descend into the core, you’d be weightless there because all the matter around you would tug on you equally. As you ascended back to the surface, you’d gradually return to your normal weight. Credit: NASA
AstroBob: If you dug a deep enough hole, would end up in China?
August 6, 2017 - 1:29pm
June 25, 2017
The most common firefly of eastern North America is Photinus pyralis, or the common eastern firefly. This is most of us see in own backyards at night. Bob King / rking@duluthnews.com
AstroBob: Fireflies - green sparks in the dark
June 25, 2017 - 11:48am
May 28, 2017
Astronaut Jack Fischer waves while attached to the Destiny laboratory during a spacewalk to replace a failed computer relay box and install a pair of wireless antennas last week. Credit: NASA
AstroBob: Observing alert -- space station marathon is underway
May 28, 2017 - 6:06pm
April 16, 2017
This artist’s concept depicts the early Martian environment (right) — believed to contain liquid water and a thicker atmosphere — versus the cold, dry environment seen at Mars today (left). NASA’s Mars Atmosphere and Volatile Evolution (MAVEN) has been orbiting the Red Planet for more than two years, studying its upper atmosphere, ionosphere and interactions with the sun and solar wind. NASA’s Goddard Space Flight Center
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Astro Bob: How Mars turned nasty cold
April 16, 2017 - 9:21am
April 9, 2017
Astro Bob: Spring nights sweeter with the space station
April 9, 2017 - 10:18am