Science and Technology
JPL, NASA Say Streaks on Martian Surface Likely Made by Sand – Not Water As Previously Thought

This inner slope of a Martian crater has several of the seasonal dark streaks called "recurrent slope lineae," or RSL, that a November 2017 report interprets as granular flows, rather than darkening due to flowing water. The image is from the HiRISE camera on NASA's Mars Reconnaissance Orbiter. Credits: NASA/JPL-Caltech/UA/USGS Dark features on Mars, which have been previously considered evidence for subsurface flowing of water,…

Female Tech Entrepreneurs Hampered by Bias Among Male Investors, Study Co-Authored by Caltech Associate Professor Finds

Michael J. Ewens is an associate professor of finance and entrepreneurship at Caltech. Credit: Lance Hayashida/Caltech Office of Strategic Communications A new study is highlighting one possible reason women aren’t making more headway in Silicon…

Caltech’s Zwicky Transient Facility Opens Its Eyes to the Volatile Cosmos

ZTF took this "first-light" image on Nov. 1, 2017, after being installed at the 48-inch Samuel Oschin Telescope at Palomar Observatory. The full-resolution version is more than 24,000 pixels by 24,000 pixels. Each ZTF image…

JPL Expert, in New NASA Video, Teams with Space Researcher Who Explains Why Hunt for Extraterrestrial Life Will Have the Answer Within 20 Years

A JPL scientist paired with a Goddard Space Flight Center researcher star in a new NASA video in which the duo explain why it is likely the hunt for extraterrestrial life will be over within…

Caltech Engineers Create Stable Plasma Ring in Open Air, A Scientific First

A torus of plasma, viewed from above. The ring is created by a jet of water striking a crystal plate. Credit: Mory Gharib/Caltech For the first time, engineers at Caltech have created a stable ring…

JPL Engineer Breaks the Internet (Again) After Posting NASA Bathroom Sign on Twitter

Bobak Ferdowsi via Twitter A systems engineer at Jet Propulsion Laboratory whose Mohawk hairdo became an internet sensation in 2012 as he celebrated the Curiosity…

JPL Scientists Work to Save Humanity from Threat of Yellowstone Supervolcano

rand Prismatic Spring and Midway Geyser Basin at Yellowstone National Park. Image by Brocken Inaglory, CC BY-SA 3.0 A team of scientists led by engineers…

Pasadena’s JPL is Part of First Successful International Asteroid Tracking Exercise

2012 TC4's heliocentric orbit has changed due to the 2012 and 2017 close encounters with Earth. The cyan color shows the trajectory before the 2012…

2.4 Million Names Are Headed To Mars, Thanks To JPL-Managed InSight Mission

A spacecraft specialist in a clean room at Lockheed Martin Space Systems in Denver, where the InSight lander is being tested, affixes a dime-size chip…

Overlooked Treasure: The First Evidence of Exoplanets, Filed in a Pasadena Storeroom for a Century

Artist concept of an exoplanet and debris disk orbiting a polluted white dwarf. Credit: NASA/JPL-Caltech Beneath an elegant office building with a Spanish-style red tiled roof in Pasadena, three timeworn storerooms safeguard more than a century of astronomy. Down the stairs and to the right is a basement of wonder. There are countless wooden drawers and boxes, stacked floor to ceiling, with telescope plates, sunspot drawings and other records. A faint ammonia-like smell, reminiscent of old film, fills the air. Guarding one storeroom is a short black door with a sign saying “This door to be kept closed.” Carnegie Observatories…

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