Mark Hammergren (1985-1987), Matt Cleary (1986-1990), Monica Haddox (1989-1993), Sumner Small (1940-1943), Eileen Major (1978-1982), Alexander Lyle (1993-1994)
Youd need at least a pair of binoculars, said Adler Planetarium astronomer Mark Hammergren. And most of the reports I saw were from experienced observers who knew exactly where to look.
Date: Nov 26, 2013
Source: Google
Summer Solstice 2013: Why It's the First Day of Summer
While the astrology-minded might be tempted to see significance in the timing of the two celestial events, there is no connection, said Mark Hammergren, an astronomer at the Adler Planetarium in Chicago.
Date: Jun 20, 2013
Category: Sci/Tech
Source: Google
Sky-Watchers' Guide: How to See Lyrid Meteors This Weekend
"Brief outbursts of around a hundred meteors per hour have been noted a couple of times in the 20th century, and Chinese astronomers in 687 B.C. recorded Lyrid meteors falling like rain overhead," said Mark Hammergren, an astronomer at Adler Planetarium in Chicago, Illinois.
The comet has been visible in the Southern Hemisphere for several weeks and is just becoming visible in the North, said Mark Hammergren of Chicago's Adler Planetarium. "Some experienced amateur astronomers in Florida have already seen it."
Date: Mar 08, 2013
Category: Sci/Tech
Source: Google
Close Encounter by Asteroids Makes Case for Scrutiny
It appears to be a cosmic coincidence, Mark Hammergren,an astronomer at Chicagos Adler Planetarium, said in aninterview. Both of these things are reminding us that we liveon a dynamic Earth. There are a lot of things going on in theuniverse.
Date: Feb 15, 2013
Category: World
Source: Google
Summer Solstice 2012: Why It's the Longest Day of the Year
In general, the exact timing of the summer solstice changes from year to year, "but there's a bigger jump when you have a leap year," explained Mark Hammergren, an astronomer at the Adler Planetarium in Chicago.