Sections

Weather Forecast

Close

Astronomy

March 26, 2017
The slow cyclic wobble of Earth’s axis called precession resembles the motion of a top slowing down only the Earth’s not slowing down – it repeats the circle every 25,800 years. The wobble causes the pole star to change and the Sun to moves westward along the zodiac. Earth and Planetary Magnetism Group ETH-Zurich
AstroBob: Salvador Dali would love these constellations
March 26, 2017 - 7:00am
March 12, 2017
Earth’s counterclockwise motion around the sun (to the left or east) causes the constellations to drift to the right (west) during the year. The effect is subtle — stars rise in the east four minutes earlier each night because of our planet’s travels — but the minutes add up, creating a complete turnover in the constellations every year. Bob King / rking@duluthnews.com
AstroBob: Welcome Arcturus!
March 12, 2017 - 6:12pm
March 5, 2017
A brilliant fireball breaks up in the atmosphere. Visible light and radio waves given off by a bright meteor may be translated by common materials into hissing sounds some hear at the sight of the event. John Chumack
AstroBob: A new take on why we hear meteors
March 5, 2017 - 3:07pm
February 26, 2017
Luna 17, the spacecraft that carried the Lunokhod 1 rover to the surface, is the shiny platform seen above center in this photo taken by NASA’s Lunar Reconnaissance Orbiter. You can make out the rover tracks around the lander including the “doughnuts” the rover made to test its turning abilities. NASA / GSFC / Arizona State University
AstroBob: Can you see the Russian landers, rovers on the moon? Yes!
February 26, 2017 - 1:08pm
February 19, 2017
The sun’s fiery conveyor belts skim the surface of the sun, sweeping up the magnetic fields of old, dead sunspots. The "corpses" are dragged down at the poles to a depth into the solar depths, where they’re recharged by the sun’s rotation. Reincarnated, they become buoyant and float back to the surface to make new sunspots! NASA
AstroBob: Ride the roller coaster to solar minimum
February 19, 2017 - 2:04pm
February 12, 2017
Use this photo of Saturn taken by the Hubble Space Telescope to get oriented on which ring is which. Credit: NASA/ESA
AstroBob: Saturn's got a whole new groove
February 12, 2017 - 1:14pm
December 15, 2016
The sun sets so early and rises late so even though it’s cold out, you can get out early in the evening with your family and stargaze, King says. Special to The Forum
Merry and bright: Mark the calendar for winter solstice and starry nights
December 15, 2016 - 5:51am
September 2, 2016
Curious radio signal stirs talk of extraterrestrials
September 2, 2016 - 9:06am
January 6, 2016
Teacher, students present research findings at convention
January 6, 2016 - 10:47pm
October 23, 2014
The moon encroaches on the sun in a partial solar eclipse 5:11 p.m. Thursday at Kandi Entertainment Center in Willmar. Astronomy students from Willmar Senior High viewed the eclipse. (Tribune photo by Ashley Bogan)
Willmar astronomy students in class during ‘best astronomy year’
October 23, 2014 - 11:42pm
July 17, 2013
In an Oct. 17, 2011, file photo, a staff member displays gold bullion bars during a news conference at the Chinese Gold and Silver Exchange Society in Hong Kong. A new study based on observations from space suggests the gold on Earth came from colliding dead stars in a cataclysmic event that occurred long ago. (AP Photo, File)
Study: Dead stars colliding forged gold on Earth
July 17, 2013 - 1:30pm
February 6, 2013
Closest Earth-like planet just a 'stroll across park'
February 6, 2013 - 3:58pm
January 13, 2012
Bob King blogs about astronomy at astrobob.areavoices.com. Photo by Bob King
Areavoices.com: Last chance to see planet Neptune this season
January 13, 2012 - 9:00am
December 20, 2011
The tip of Earth's axis causes the northern hemisphere to face away from the sun in winter and toward it in summer. Credit: NASA
Areavoices.com: Winter solstice arrives tomorrow
December 20, 2011 - 1:40pm
December 9, 2011
Astro Bob blogs about astronomy at Astrobob.areavoices.com.
Areavoices.com: Don't forget about tomorrow's lunar eclipse
December 9, 2011 - 2:48pm