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        Caltech Logo
        Cat's Paw Nebula
        The Cat's Paw Nebula, imaged here by NASA's Spitzer Space Telescope using the MIPS and IRAC instruments, is a star-forming region that lies inside the Milky Way galaxy. New stars may heat up the surrounding gas, which can expand to form "bubbles."
        Credit: NASA/JPL-Caltech
        Ambulance
        A scale model of the Autonomous Flying Ambulance on display at the new CAST facility.
        Credit: Caltech
        Microscope
        Closeup of the photoacoustic microscope, which provides label-free multilayered histologic images of human breast cancer.
        Credit: Caltech
        Bacterial mats
        Oxyphotobacteria in microbial mats in Yellowstone.
        Credit: Fischer Laboratory/Caltech
        Solar fuels
        Scientists at JCAP create new materials by spraying combinations of elements onto thin plates.
        Credit: Caltech
        Illustration of red dwarf with planet
        This illustration shows a red dwarf star orbited by a hypothetical exoplanet.
        Credit: NASA/ESA/G. Bacon (STScI)
        MEMOIR
        MEMOIR enables the histories of cells to be recorded in their genomes and then read out using microscopy. Here, MEMOIR cells were variably activated, as seen by the bright cyan nuclear fluorescence in some cells. The cells recorded information in response to this signal with the help of a DNA-editing system called CRISPR. This recorded information was then read out using a technique called seqFISH to visualize certain RNA transcripts in the cells (red dots).
        Credit: Elowitz and Cai Labs/Caltech
        Color detectors
        Artist's representation of a conceptual design for the color detector, which uses thermoelectric structures with with arrays of nanoscale wires that absorb different wavelengths of light based on their width.
        Credit: Harry Atwater and Kelly Mauser/Caltech
        Illustration of seven TRAPPIST-1 planets
        This illustration shows the seven Earth-size planets of TRAPPIST-1, an exoplanet system about 40 light-years away, based on data current as of February 2018. The image shows the planets' relative sizes but does not represent their orbits to scale. The art highlights possibilities for how the surfaces of these intriguing worlds might look based on their newly calculated properties.
        Credit: NASA/JPL-Caltech/R. Hurt, T. Pyle (IPAC)
        Ring
        A torus of plasma, viewed from above. The ring is created by a jet of water striking a crystal plate.
        Credit: Mory Gharib/Caltech
        Multiple Cassiopea jellyfish on the bottom of a tank.
        Multiple Cassiopea jellyfish on the bottom of a tank.
        Credit: Caltech
        A gif of 3D regions of of the nucleus visualized with SPRITE.
        A 3D model of the nucleus made with SPRITE: DNA regions in the "inactive hub" on chromosomes 15 (orange) and chromosome 18 (green) coming together around a large nuclear body in the nucleus (blue) called the nucleolus (red).
        Credit: Courtesy of the Guttman laboratory
        Keck Observatory
        Keck Observatory
        A bone rendered transparent. Stem cells are colored red.
        A mouse tibia that has been rendered transparent with Bone CLARITY. Stem cells appear distributed throughout the bone in red. The ability to see bone stem cell behavior is crucial for testing new osteoporosis treatments.
        Credit: Science Translational Medicine, Greenbaum, Chan, et al; Gradinaru laboratory/Caltech
        Plume
        Seen as a light-colored plume, water jets out from the back of a larval dragonfly.
        Credit: Chris Roh and Mory Gharib/Caltech
        Cat's Paw Nebula
        Ambulance
        Microscope
        Bacterial mats
        Solar fuels
        Illustration of red dwarf with planet
        MEMOIR
        Color detectors
        Illustration of seven TRAPPIST-1 planets
        Ring
        Multiple Cassiopea jellyfish on the bottom of a tank.
        A gif of 3D regions of of the nucleus visualized with SPRITE.
        Keck Observatory
        A bone rendered transparent. Stem cells are colored red.
        Plume