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NASA Astrophysicist Dr. Scott Guzewich to Discuss ‘Swimming in Martian Lakes: Curiosity at Gale Crater’ on April 25

This post was authored by Stephanie Marcus, Science Reference Librarian in the Science, Technology, and Business Division.

Dr. Scott Guzewich (Courtesy of NASA)

NASA’s Mars Science Laboratory mission landed the nuclear powered rover Curiosity on the floor of the 96-mile wide Gale Crater on August 6, 2012.  In a complicated maneuver using a sky crane, it touched down near “Mount Sharp,” a peak, which, were it on Earth, would rise up a little over 3 miles.  Early on in the mission, Curiosity drove through an ancient streambed and accomplished its major objective, finding evidence of a past environment suited to supporting microbial life.  The rover collected the first samples of material ever drilled from rocks on Mars, and analyzed them, providing proof of conditions favorable for life early in the Red Planet’s history.  Measurements from another drilled sample showed the age of the rock being sampled to be 4.2 billion years old, although it had only been exposed at the surface for 80 million years.  Analysis of additional samples revealed that Gale Crater likely hosted a potentially habitable lake-and-stream system for millions of years in the ancient past.

Since 2014, Curiosity has been exploring the various rock layers on Mount Sharp to see how the mountain has changed over geological time and whether it also may have harbored habitable environments in the ancient past. The rover has found sand dunes and further evidence of ancient freshwater deposits.  The Mars Science Laboratory mission was originally planned for two years, but Curiosity is still providing valuable data after six years.

Mars researcher Scott Guzewich will be speaking about Martian lakes in the second program of the 2018 lecture series.  Guzewich earned a B.A. in meteorology from Penn State and served as a weather officer in the Air Force before completing a Ph.D. in Earth and Planetary Science at Johns Hopkins.

Date:  Wednesday, April 25, 2018

Time:  11:30 a.m.-12:30 p.m.

Place:  Pickford Theater, 3rd floor, Madison Building

For inquiries about this program, contact Stephanie Marcus in the Science, Technology & Business Division at [email protected] or the division office at: (202) 707-1212. Individuals requiring accommodations for this event are requested to submit a request at least five business days in advance by contacting (202) 707-6362 or [email protected].

The lecture will be later broadcast on the library’s webcast page and YouTube channel “Topics in Science” playlist.

Announcing “What’s New in Science, Technology, and Business”

The Science, Technology, & Business Division has long sent periodic email updates on “What’s New in Science and Technology”, covering lectures, exhibits, and other news. It has been newly re-named–“What’s New in Science, Technology, & Business”–and will feature updates and information from Business too! If you want to receive occasional emails about special events, lectures, current […]

Nobel Physicist Ernest O. Lawrence: A Small Town, Cyclotrons, and the Birth of Big Science

This post was authored by Stephanie Marcus, Science Reference & Research Specialist, in the Science, Technology, and Business Division of the Library of Congress. She is also author of the blog posts “Kebabs, Kabobs, Shish Kebabs, Shashlyk, and: Chislic” and “The Potato Transformed.” I grew up in the small town of Canton, South Dakota.  A […]

Finding Our Origins with the Hubble and James Webb Space Telescopes: Lecture with NASA’s Dr. Jonathan Gardner, March 22

This post was authored by Stephanie Marcus, Science Reference Librarian in the Science, Technology, and Business Division. The Hubble, the first space-based optical telescope, has been circling the Earth and making observations for nearly 28 years since its launch in April 1990.  Just this week it has had its eye on a relic galaxy, NGC […]

Mme. Bégué and her Second Breakfast

This great black and white photo taken some time between 1900 and 1906 features a restaurant in New Orleans at the corner of Decatur and Madison – right down the street from Jackson Square. The restaurant – H. Bégué’s Exchange – was opened in 1863 by husband and wife Hippolyte Bégué and Elizabeth Kettenring Dutreuil […]

What’s for Lunch: 2018 Earth and Space Science Talks at the Library of Congress, Sponsored by the NASA Goddard Space Flight Center and the ST&B Division

Lecture series coordinators Sean Bryant and Stephanie Marcus, Science, Technology and Business Division, contributed to this blog post. With March just around the corner, we are preparing to kick off our annual Earth and Space Science lecture series, now in its twelfth year.  The series is a partnership between the NASA Goddard Space Flight Center […]

Endangered Business Data

What is endangered business data? It can probably mean a lot of things, but what comes to my mind first is this: business information and data sets that are inaccessible, nonexistent, or in danger of becoming so. For example, there could be gaps in coverage, print sets lost, microform copies decomposing or unreadable without proper […]

The Project: Mapping Business History with LC Collections

This is the second post in an ongoing series addressing digital scholarship in business and economic history related to Library of Congress collections. Read the first post here. I’ve been thinking a lot recently about how to begin tackling the many questions I posed in my first post. I read blogs (The Signal‘s excellent ”Digital Scholarship […]