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October 6, 2017
Painted Lady butterflies collect nectar from dahlia flowers Sept. 4 in West Fargo. David Samson / The Forum
Horde of migrating Painted Lady butterflies show up on weather radar
October 6, 2017 - 1:16pm
September 28, 2017
Vika, a sharp-toothed rat that grows up to 18 inches long and lives in a tree. It's just a painting, but Vika is real. Peggy Macnamara/Field Museum.
How an almost-mythical species of rat was discovered on a remote island
September 28, 2017 - 1:18pm
September 25, 2017
Environmental conditions play a role in the colors that leaves change to during autumn. Even as the leaves are dying, they are helping the trees prepare for winter. Washington Post photo by John McDonnell
Why do leaves change colors?
September 25, 2017 - 9:21am
September 21, 2017
NOAA says warmer start to winter, but La Nina could bring cold, snow later
September 21, 2017 - 6:37pm
September 19, 2017
An aerial view of the edge of the Ross Ice Shelf, in Antarctica, in 2017. Scientists are racing to understand what is happening to the ice shelf as the planet warms around it. They are also trying to measure the role of human-caused climate change in weakening other parts of the West Antarctic ice sheet, and to fathom how damaging warming seas and changing wind patterns might ultimately prove to be. (Jonathan Corum/The New York Times)
New climate calculations could buy the Earth some time - if they're right
September 19, 2017 - 9:05am
September 15, 2017
A handout image shot with the Cassini spacecraft’s camera of Enceladus, one of Saturn’s moons, across the unilluminated side of Saturn's rings, taken on Oct. 27, 2007. After 13 years of researching and imaging the ringed planet and its many moons, NASA will end the mission in September 2017. The spacecraft will fly into the atmosphere of Saturn and burn up. (NASA/JPL/Space Science Institute via The New York Times)
The Cassini spacecraft crashed into Saturn, ending a successful 20-year mission
September 15, 2017 - 11:14am
August 24, 2017
Wikicommons photo
Narwhals helping NASA understand melting ice
August 24, 2017 - 9:47am
August 20, 2017
88-year-old Linnea Anderson of East Grand Forks holds a T-shirt she made after watching her seventh solar eclipse  in Australia in 1998. photo by Eric Hylden/Grand Forks Heraldplay button
East Grand Forks woman sees seven times what billions of others will never witness
August 20, 2017 - 7:45am
August 9, 2017
According to a recent study, U.S. cats' and dogs' consumption of meat and other animal products is a big climate cost. (Kevin Tanaka/Chicago Tribune/TNS)
Scientists tally the environmental impact of feeding meat to our cats and dogs. It's huge
August 9, 2017 - 11:30am
July 31, 2017
Stock Image / Flickr
Earth likely to warm more than two degrees by 2100, experts say
July 31, 2017 - 4:10pm
July 30, 2017
This is a section of the NASA/Google interactive map showing the details for Springfield, Ill. The path of totality is shown between the purple lines. NASA/Google photo
Astro Bob: See what the August eclipse will look like ... from anywhere
July 30, 2017 - 6:00am
July 24, 2017
An ash tree on Saturday, July 22, in Duluth. (Mike Krebs / Forum News Service)
1 billion black ash trees in peril: Scientists invade Duluth to share emerald ash borer research
July 24, 2017 - 6:00am
July 17, 2017
Researchers on the Blue Heron, the research vessel of UMD's Large Lakes Observatory, get ready to deploy an underwater microphone to record sounds 75 feet under the surface of Lake Superior. They picked up some interesting results. (Photo courtesy UMD)
Noisy fish? Lake Superior underwater noises include ships, wind and ... eelpout
July 17, 2017 - 6:00am
July 12, 2017
An aerial view of the rift in the Larsen C seen in an image from the Digital Mapping System over the Antarctica Peninsula, Antarctica, on Nov. 10, 2016. Handout photo / NASA's Goddard Space Flight Center
One of the biggest icebergs in recorded history just broke loose from Antarctica
July 12, 2017 - 2:30pm
July 10, 2017
Sen. Al Franken speaks with Peggy Kennedy, president of M State, about a program to fund partnerships between schools like M State and businesses Tuesday, March 22, 2016, in Moorhead. Michael Vosburg / Forum Photo Editor
Minn. Sen. Al Franken, David Letterman to collaborate on climate change video series
July 10, 2017 - 4:07pm