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Interstate 35 Southbound reopened in Duluth

science and nature

February 20, 2019
Researchers say man-made climate change caused Australian rodent extinction
February 20, 2019 - 2:55pm
Neptune as seen by Voyager 2 during its flyby in 1989.
Tiny new moon discovered around Neptune
February 20, 2019 - 2:39pm
February 19, 2019
A big, bright moon rises among bare branches Monday evening. (Bob King / For the News Tribune)
Astro Bob: Mercury makes an appearance, Supermoon pleasures
February 19, 2019 - 3:05pm
February 18, 2019
The full moon rising over Duluth’s Park Point last fall. Thicker air near the horizon filters out the green, blues and violets from the rising moon, leaving the warmer hues to color it. (Bob King)
Astro Bob: Snow Moon shines bright light tonight
February 18, 2019 - 12:14pm
February 17, 2019
Alexandria Villasenor, 13, skips school to strike in front of the United Nations, with signs reading: "School Strike 4 Climate" and "Cop24 Failed Us." Photo for The Washington Post by Sarah Blesener
How a 7th grader's strike against climate change exploded into a movement
February 17, 2019 - 10:19am
February 13, 2019
Opportunity's heat shield impact site is seen on Mars in an approximately true-color mosaic of panoramic camera images taken Dec. 28, 2004. On the left, the main heat shield piece is inverted and its metallic insulation layer glints in the sunlight. Handout courtesy of NASA/JPL/Cornell
NASA says goodbye to record-setting Mars rover Opportunity
February 13, 2019 - 3:40pm
February 12, 2019
The sun sets on the Mojave National Preserve in Kelso, Calif., on Feb. 5. The public lands bill passed by the Senate Tuesday would connect the preserve with Death Valley National Park. Photo for The Washington Post by Jenna Schoenefeld
Senate passes the decade's biggest public lands package
February 12, 2019 - 5:59pm
The half moon makes a triangle with the Seven Sisters and Hyades star clusters tonight, then hovers over the heart of the Hyades tomorrow. Stellarium
Astro Bob Blog: Half moon hikes into the Hyades
February 12, 2019 - 2:58pm
February 11, 2019
The level of Lake Superior is excepted to remain above normal through most of 2019, but probably won't hit any record levels, U.S. Army Corps of Engineers hydrologists say. News Tribune file photo.
Lake Superior dropped more than usual in January
February 11, 2019 - 4:43pm
Moon and Earth are seen on Feb. 3 in a photo taken by a webcam on China’s Longjiang-2 satellite orbiting the moon. CCTV / CNSA
Astro Bob: See Earth from the lunar far side 
February 11, 2019 - 12:09pm
February 10, 2019
Caption and credit: New Horizons took this image of Ultima Thule Jan. 1, when the NASA spacecraft was 5,494 miles (8,862 km) beyond it. The photo at left is made from raw images and show motion blur; the right side shows the sharpened view. NASA/Johns Hopkins Applied Physics Laboratory/Southwest Research Institute/National Optical Astronomy Observatory
Astro Bob Blog: Pancakes Anyone? Ultima Thule flatter than we thought
February 10, 2019 - 1:54pm
February 8, 2019
The Sailorettes, a group of Grand Forks-area women who ditch their husbands and significant others every year to go ice fishing, had another successful excursion to Lake of the Woods. Pictured with an eelpout they caught during this year's trip are Erin Snyder (from left), Trish Winter, Stacey Flesche and Kelsey Schemionek.
Sailorettes launch ice fishing tradition
February 8, 2019 - 5:53pm
Acting EPA Administrator Andrew Wheeler at the White House on July 18, 2018. Washington Post photo by Jabin Botsford.
Under Trump, EPA inspections fall to a 10-year low
February 8, 2019 - 5:32pm
February 6, 2019
This female wolf that was trapped on the Grand Portage Reservation and moved to Isle Royale last October has walked back to the North Shore, across about 14 miles of frozen Lake Superior, a setback in the effort to repopulate the island's wolf population. National Park Service photo.
Wolf leaves Isle Royale across ice
February 6, 2019 - 2:56pm
On Feb. 2, Comet Iwamoto displayed a blue-green coma and a short, faint tail pointing northwest. The green color comes primarily from light given off by carbon when it’s excited by the sun’s ultraviolet light. (Photo by Rolando Ligustri)
Astro Bob Blog: Comet Iwamoto wriggles into the evening sky
February 6, 2019 - 2:20pm