2014 NASA Centennial Challenges Sample Return Robot Challenge

Armstrong, flight, research

Lauren Hughes · 1280×853

Family, consumer, science

Internet Archive Book Images · 2020×1444

Bamum craftsman, in Cameroon (IMP-DEFAP CMCFGB-CP043 2)

Wuhrmann, Anna · 4000×2693

Trees

Kim Siever · 1024×682

Playing with water, light and leaves

Lesekreis · 3718×3259

Autumn leaves came unusally late this year (December 11 2021) 5

Syced · 4032×3024

Autumn leaves came unusally late this year (December 11 2021) 4

Syced · 4032×3024

Women students seated around Bishop Hall fireplace 1919 (3190633337)

Snyder, Frank R. Flickr: Miami U. Libraries - Digital Collections · 3000×2408

Kaunas Botanical Garden, July 2025, greenhouse interior

Bdx · 3024×4032

Autumn leaves came unusally late this year (December 11 2021) 3

Syced · 4608×3456

William Henry Harrison Campaign Textile (4359400109)

Cornell University Library · 1536×956

Paint robot at work

bdungeon76 · 1024×768