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What Happens When We Go to Space?

From Project Hail Mary to 2001: A Space Odyssey, we've seen humans on the big screen in spaceships adapt quickly to what's called microgravity, the reason why people appear weightless in space. But there's more than what goes on in space than what the movies portray. 

As NASA prepares to launch its Artemis II mission, which will be the first time humans have flown to the Moon and back in more than 50 years, CAS human physiologist John Halliwill breaks down what happens to the human body in space and when it returns to Earth — and why being in space is basically "anti exercise." 

Explore the Science of Space Flight

News from CAS

HUMAN PHYSIOLOGY - John Halliwill has been named a 2025 fellow by the American Association for the Advancement of Science (AAAS). A professor in the Department of Human Physiology, Halliwill was recognized for advancing the understanding of exercise-induced cardiovascular adaptation and discovering histamine's role as a signaling molecule in adaptation to physical activity.
ASIAN STUDIES - This popular course on Japanese popular culture taught by Alisa Freedman examines icons like Hello Kitty, Pikachu and the Oregon Duck can transform global politics and people’s identities.
ROMANCE LANGUAGES - As language learning declines nationwide, the Romance Languages in the College of Arts and Sciences are on the rise, thanks to reimagining curriculum to promote student success, and the results are undeniable.

All news »

We Love Our Supporters

Your gifts change lives

Your Gift Changes Lives

Gifts to the College of Arts and Sciences can help our students make the most of their college careers. To do this, CAS needs your support. Your contributions help us ensure that teaching, research, advising, mentoring, and support services are fully available to every student. Thank you!

Give to CAS

a collage of images from the March 2026 CAS Connection

What’s Happening in CAS?

Alison Carter began an archeology adventure of a lifetime when she was in Cambodia and received an email about a truckload of artifacts getting dropped off on the UO campus. With the help of undergrad CAS students, Carter repatriated hundreds of Angkorian artifacts to Cambodia. 

Also in the March CAS Connection issue, go inside a CAS Japanese pop culture course, learn what happens to the human body while in space, find out why language learning is on the rise—and more. 

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Undergraduate Studies

Wherever your academic goals eventually take you at the UO, all Ducks begin their journey with foundational courses in CAS. More than 60 percent of students go on to pursue a major in a CAS department or program. With more than 50 departments and programs, there’s an intellectual home for almost any interest, talent, or career aspiration.

a person throwing the "O"

Graduate Studies

The College of Arts and Sciences offers more than 30 master's programs and more than 20 doctoral programs across a diverse range of disciplines. Both as contributors to research teams and through their own scholarship and teaching, our CAS graduate students are indispensable to the vitality of the UO academic mission.

Student Support Services

We provide our students with a variety of resources to help you thrive inside and outside the classroom. Through Tykeson Advising, we provide comprehensive academic and career advising from the start of your journey at the University of Oregon. Learn about career preparation and get assistance in selecting the very best classes. Connect with labs, libraries, IT and tutoring. Find your community on campus.

World-Class Faculty

a person leading a classroom

The College of Arts and Sciences faculty members are a driving force of the high-output, high-impact research activity that has earned the UO membership in the prestigious Association of American Universities (AAU). Our world-class faculty members are inspiring teachers.

Among them are five members of the American Academy of Arts and Sciences, four members of the National Academy of Sciences. They are committed to helping students discover their academic passion. Every day, they work to expand students’ intellectual horizons, preparing them for life after college with real-world knowledge and skills.

Spotlight on CAS Academics

Choose Your Path

The College of Arts and Sciences offers more than 50 majors and nearly 70 minors across multiple departments and programs in the natural sciences, social sciences and humanities. We also offer 36 master’s programs and 25 doctoral programs.

dean chris poulsen posing in front of Tykeson hall

Meet our Dean

In the College of Arts and Sciences (CAS), we are committed to excellence in research and teaching, student success, and diversity, equity, and belonging. 

A liberal arts education—one that offers a breadth of intellectual approaches and perspectives and depth in a major discipline—is the foundation to a purposeful life as a life-long learner, engaged citizen, and leader. The skills you will learn here—from written and verbal communication to analytical and quantitative reasoning, to compassion and understanding—are those that employers seek and will open the door to a wealth of opportunities. 

You will find more than 50 majors and a multitude of minors within CAS, and seemingly endless opportunities for personal exploration and discovery. Whether you are an incoming first-year student, a grad student or a transfer student, you can map an exciting future and be part of a fun, warm, engaged liberal arts community here. Come join us. And go Ducks! 

More from Dean Chris Poulsen

The College of Arts and Sciences includes:

52
undergraduate degree programs
36
masters programs
25
PhD programs
11,000+
Undergraduate students in CAS Majors
800+
faculty members
1,200+
masters and PhD students in CAS

Happening at CAS

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

UO College of Arts & Sciences (@uocas) • Instagram photos and videos

Apr 3
The Arts and Crafts of Mapmaking: Welcome Back (With Snacks!) 2:00 p.m.

Do you #Love Maps? Join us for map crafts, drinks, and snacks! Make map buttons, fold map beads, or just hang out and craft with folks who #LoveMaps! All materials...
The Arts and Crafts of Mapmaking: Welcome Back (With Snacks!)
April 3
2:00–3:00 p.m.
Knight Library 144 (Edmiston)

Do you #Love Maps? Join us for map crafts, drinks, and snacks! Make map buttons, fold map beads, or just hang out and craft with folks who #LoveMaps! All materials provided.  This event series is open to UO students, staff, and community members.  

Apr 6
Graduate-Professional Student Appreciation Week

April 6 through 10 is Graduate-Professional Student Appreciation Week, and we're celebrating the UO's graduate and law students with events, activities, and...
Graduate-Professional Student Appreciation Week
April 6–10

April 6 through 10 is Graduate-Professional Student Appreciation Week, and we're celebrating the UO's graduate and law students with events, activities, and giveaways. See what's happening below, and check out our Graduate-Professional Student Appreciation Week webpage for more details.

 All Week

  • Free professional headshots (hosted by the Division of Graduate Studies)
  • Prize wheel for COE graduate students (hosted by the College of Education, HEDCO's Student Academic Services Office)
  • Free coffee for SOMD students (hosted by the School of Music and Dance)

 Monday, April 6

  • 9:30 - 11:30 a.m. Free refreshments for all graduate and law students (hosted by the Division of Graduate Studies, Graduate Student Lounge, Susan Campbell Hall 111)
  • Noon - 12:45 p.m. Free Pilates-yoga class for graduate students (hosted by PE and Rec, Woodruff Gymnasium, 220 Gerlinger Hall) - Register in advance

 Tuesday, April 7

  • 8:30 - 10 a.m. Knight Campus and collaborating departments and institutes coffee and treats (hosted by the Phil and Penny Knight Campus for Accelerating Impact, First Floor Forum, Knight Campus Building 2)
  • Morning. Coffee and hot chocolate for law students (hosted by the School of Law)

 Wednesday, April 8

  • Morning. Doughnuts for Ducks for COE graduate students (hosted by the College of Education, HEDCO Courtyard)
  • Noon - 12:45 p.m. Free Pilates-yoga class for graduate students (hosted by PE and Rec, Woodruff Gymnasium, 220 Gerlinger Hall) - Register in advance
  • Noon - 1:00 p.m. College of Design graduate student showcase and social (hosted by the College of Design, Hayden Gallery)
  • 3:30 - 4:30 p.m. Free button-making table for all graduate and law students (hosted by the Craft Center and the Division of Graduate Studies, Graduate Student Lounge, Susan Campbell Hall 111)

 Thursday, April 9

  • 9 - 11 a.m. Free coffee and pastries for all graduate and law students (hosted by the Knight Library, GradSpace, Knight Library 148)
  • 2:30 - 4:30 p.m. Free button-making table, plant giveaway, and refreshments for all graduate and law students (hosted by the Division of Graduate Studies, Graduate Student Lounge, Susan Campbell Hall 111)
  • 2:30 - 4:30 p.m. Reception for CAS graduate students (hosted by the College of Arts and Sciences, Tykeson Hall)

 Friday, April 10

  • UO Summit for Sustainable Organizations. Ten free tickets available for graduate and law students (email summit.so@uoregon.edu to request your free ticket)
  • 9:00 a.m. - 6:00 p.m. Free coffee if you wear your UO Ducks gear (hosted by Duck Store, Flagship Campus Location in Eugene)
  • Noon - 2:00 p.m. Free rock painting with the Craft Center (hosted by the Craft Center, Erb Memorial Union, Oregon Plaza by the O Desk)
  • 2:00 p.m. - 3:30 p.m. Grad student networking: Like to mingle? Let’s play bingo! (hosted by the Office of the Vice President for Research and Innovation, Willamette Hall Atrium) - RSVP by April 6

 Saturday, April 11

Apr 6
Grad Fair 2026 10:00 a.m.

Commencement is on its way, and The Duck Store has what you need to celebrate your achievement. From your cap & gown, stoles of all kinds, graduation announcements to...
Grad Fair 2026
April 6–8
10:00 a.m.–5:00 p.m.
The Duck Store

Commencement is on its way, and The Duck Store has what you need to celebrate your achievement. From your cap & gown, stoles of all kinds, graduation announcements to send to family & friends, class rings, diploma frames and more, you'll find everything to get you set for commencement day.  

Join us for Grad Fair between April 6–April 8 at the Flagship Campus Duck Store. 

Apr 6
Introduction to ArcGIS Online 1:15 p.m.

Create an environmental justice map to learn the basics of ArcGIS Online! This two-session workshop covers the basics of manipulating geospatial data, creating maps, and sharing...
Introduction to ArcGIS Online
April 6–8
1:15–2:45 p.m.
Knight Library 144 (Edmiston)

Create an environmental justice map to learn the basics of ArcGIS Online! This two-session workshop covers the basics of manipulating geospatial data, creating maps, and sharing maps in ArcGIS Online, a GIS platform that can be accessed from a web browser. At the first session, you will learn to load data into ArcGIS Online, analyze map data through normalization and classification, and share your completed map. The second session introduces Instant Apps and covers a variety of tips and tricks. 

No experience with GIS is assumed. You may choose to bring your personal laptop for this workshop, but desktop computers are available for your use in the classroom.