Jan

22

2017

Emeritus Prof. Bruce Runnegar

The Cryogenian, coldest time in Earth History

Location: Slichter 3853
Time: 2:30PM

We are now in (and probably leaving) one of the coldest periods in Earth history. Previous icehouse intervals occurred about 300, 700 and 2000 million years ago. During one of these periods, the Cryogenian, glacial ice extended to sea level in the tropics. We shall discuss this so-called Snowball Earth event in terms of its origin, and its effects on our planet and its life. Image credit: Chris Butler/SPL

Jan

3

2017

Meteorite Gallery

Gallery Open Again

Location: Geology 3697
Time: 9AM

The Holidays are over and we are open again: Monday through Friday from 9 am to 4 pm. Sundays from 1 pm to 4 pm.

Dec

23

2016

Meteorite Gallery

Holiday Closure

Location: Geology 3697
Time: 9AM

The Meteorite Gallery will be closed from December 23, 2016 to January 2nd, 2017.

Dec

18

2016

Meteorite Gallery

Sunday Closure

Location: Geology 3697
Time: 1PM

The Meteorite Gallery will be closed this Sunday, December 18

Dec

4

2016

Emeritus Prof. Ben Zuckerman

The Search for Extraterrestrial Intelligence (SETI) - And Why It Will Fail

Location: Slichter 3853
Time: 2:30PM

It is likely that extrasolar planets exist that are similar to the Earth in having oceans, moderate atmospheric temperatures, and days similar in length to ours. However, development of a technological civilization probably requires a world with a good mixture of land and of oceans and this might be quite a rare combination. Many searches for radio and electromagnetic signals from extraterrestrial civilizations have been carried out; such searches are dubbed "SETI". However, Ben Zuckerman argues that, if technological extraterrestrials were common, then they would have come here long ago. The absence of evidence of such visitations implies that SETI searches will likely fail. Photo credit: ESO/Jose Francisco Salgado