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June 19, 2017
Artist's concept depicts an itsy bitsy planetary system -- so compact, in fact, that it's more like Jupiter and its moons than a star and its planets. Astronomers using data from NASA's Kepler mission and ground-based telescopes recently confirmed that the system, called KOI-961, hosts the three smallest exoplanets known so far to orbit a star other than our sun.  NASA-JPL-Caltech
NASA finds 10 new potentially habitable 'Earth-like' worlds
June 19, 2017 - 9:00pm
Lincoln Memorial Reflecting Pool cleaned and refilled after duckling deaths
June 19, 2017 - 3:06pm
June 15, 2017
Soil is full of microbes that produce toxins to kill their neighbors, which makes it a great source for antibiotic drugs. MUST CREDIT: Washington Post photo by Wendy Galietta.
In the hunt for new antibiotics, scientists hit pay dirt
June 15, 2017 - 1:30pm
June 14, 2017
Science may be able to provide sunless tans by changing skin's pigmentation
June 14, 2017 - 5:02pm
An ultrarare specimen of conjoined twin harbor porpoises, caught in the North Sea in May. (Courtesy of Erwin Kompanje)
Dutch fishermen caught a rare two-headed sea creature. What happened next horrified researcher.
June 14, 2017 - 4:47pm
June 9, 2017
Reader's View: If News Tribune won't support climate science, we must
June 9, 2017 - 12:47am
June 3, 2017
Minnesota survey will help target fight against Gypsy moths
June 3, 2017 - 7:38pm
May 21, 2017
BRTI Life Sciences lab tech Mary Klausen and chemist Mike Knuth confer in the firm’s cell biology lab, made by North Shore Business Enterprise Center with help from the IRRRB. Steve Kuchera / skuchera@duluthnews.com
Better brains: BRTI Life Sciences grows biotech success in Two Harbors
May 21, 2017 - 8:50pm
May 9, 2017
A view of the Blomstrand Glacier in Ny-Alesund, Norway during US Secretary of State John Kerry and Norwegian Foreign Minister Borge Brende toured the glacier, and made remarks about climate change on June 16, 2016. REUTERS/Evan Vucci/Pool/File Photo
Earth could break through a major climate threshold in the next 15 years, scientists warn
May 9, 2017 - 4:13pm
April 29, 2017
Reader's View: Dangerous to turn our backs on science
April 29, 2017 - 12:06am
April 28, 2017
 Rev. Brendan Johnston of Bethlehem Lutheran Church in Two Harbors holds a sign featuring the Mendenhall Glacier in Juneau, Alaska. Photo submitted by Brendan Johnston.
Duluthians raise their signs for science
April 28, 2017 - 3:02pm
April 26, 2017
San Diego Natural History Museum Paleontologist Don Swanson pointing at a rock fragment near a large horizontal mastodon tusk fragment. (San Diego Natural History Museum)
130,000-year-old bones could rewrite story of when humans first appeared in the Americas
April 26, 2017 - 8:44pm
People's Climate March to be held in Duluth
April 26, 2017 - 2:24pm
April 23, 2017
Reader's view: Eager to refute, scientists agree on climate
April 23, 2017 - 5:40pm
April 20, 2017
Planetarium hosting Astronomy Day event
April 20, 2017 - 7:47pm