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The figure above shows: (a) an array of 3rd-order DFB lasers gold wire bonded to an electronic chip, (b) a photo of a fabricated array of DFB triplets, (c) scanning electron microscope image of a DFB device showing three periods, and (d) a schematic of a triplet with the corresponding radiation profile.

Advancing Local Terahertz Oscillators to Enable Cosmic Observations

Universe Sep 18, 2018
NASA is developing a new type of detector that will provide insight into the formation and structure of the universe. Many of the radiative and mechanical interactions that shape the interstellar...

NASA Astrophysics Eyes Big Science with Small Satellites

Universe Sep 12, 2018
NASA has selected nine proposals to study using small satellites, or SmallSats, for advanced astronomical space-based observations. The proposed SmallSat studies are a fraction of the size, weight,...

Watch This Space: NASA Administrator Talks Webb Science with Nobel Laureate

Universe Jul 24, 2018
NASA Television will air a conversation about the progress and promise of NASA’s James Webb Space Telescope with Nobel Prize winner John Mather at 2 p.m. EDT Wednesday, July 25.
Artist rendition of an exoplanet

Record-Setting Displacement Measurements to Enable the Search for Distant Life

Universe, Exoplanets Jul 16, 2018
A team of NASA optics experts has built a picometer spatial metrology system that may enable a major Agency initiative—to locate and image Earth-like planets beyond the solar system and scrutinize...

NASA’s Fermi Traces Source of Cosmic Neutrino to Monster Black Hole

Universe Jul 12, 2018
For the first time ever, scientists using NASA’s Fermi Gamma-ray Space Telescope have found the source of a high-energy neutrino from outside our galaxy.
Artist concept of James Webb Space Telescope

NASA Completes Webb Telescope Review, Commits to Launch in Early 2021

Universe Jun 27, 2018
The Independent Review Board (IRB) established by NASA to assess progress on its James Webb Space Telescope has unanimously recommended that develo

Our Solar System’s First Known Interstellar Object Gets Unexpected Speed Boost

Universe Jun 27, 2018
Using observations from NASA’s Hubble Space Telescope and ground-based observatories, an international team of scientists have confirmed ′Oumuamua (oh-MOO-ah-MOO-ah), the first known interstellar...

NASA Hosts Media Teleconference on Status of James Webb Space Telescope

Universe Jun 26, 2018
NASA will host a media teleconference at 1 p.m. EDT, Wednesday, June 27, to provide an update on the agency’s James Webb Space Telescope and the findings of an external independent review board.