Tag Archive for 'Radar'

Ramiro Saide et al. explored how hidden electromagnetic leakage might look to extraterrestrials up to 200 light-years from Earth, if they had state-of-the-art radio telescopes like our own. Image credit: Gemini AI.

Civilian and Military Radar Leakage is Revealing Our Existence to Alien Civilizations, Study Suggests

Jul 8, 2025 by News Staff

In a new study, a team of researchers from the University of Manchester performed comprehensive simulations of Earth’s radar systems as potential technosignatures...

An artistic rendering of Kraken Mare, a large liquid methane sea on Titan. Image credit: NASA’s John Glenn Research Center.

Cassini Reveals Surface Properties of Titan’s Hydrocarbon Seas

Jul 16, 2024 by News Staff

Saturn’s moon Titan was explored by NASA’s Cassini spacecraft from 2004 to 2017. While Cassini revealed a lot about this Earth-like world, its radar...

This image shows the Sif Mons area with the active volcanic region highlighted in red. Image credit: Davide Sulcanese, IRSPS - Università d’Annunzio.

Venus is Currently Volcanically Active, New Study Confirms

May 28, 2024 by News Staff

Using radar data from NASA’s Magellan mission, planetary scientists have detected volcanic-related flow features in two different regions of Venus: on...

$The largest crustal block Byrne et al. identified in the Venus lowlands: (A) Magellan radar image mosaic of the block; named landforms are shown; the black and white arrows mark impact craters and prominent lava flows, respectively; the approximate outline of the campus is marked by a dashed yellow line; (B) radar image (left) and structural sketch (right) of extensional faults curving into the main groove belt that delineates the southwestern margin of this campus, here with a right-lateral sense of slip; (C) sigmoidal, positive-relief landforms we interpret as right-lateral transpressive structures; (D) another example of sigmoidal, positive-relief ridges we regard as denoting right-lateral transpression, with a different strike from those structures in (C); in these and subsequent structural sketches, prominent extensional structures are in purple (with ball-and-bar symbols shown on example down-thrown blocks), and prominent shortening structures are in teal (with sawtooth symbols on example upper blocks); minor and/or poorly expressed fractures of various types are shown as thin, black lines; wrinkle ridges are generally not recorded; exemplar extensional and shortening landforms are marked with gold and red arrows, respectively; the radar look direction is from the left in (A), and from the right in (B-D). All images are in azimuthal equidistant projection, centered at 24.5°S, 146.5°E (A); 20.0°S, 138.3°E (B); 27.2°S, 141.1°E (C); and 18.0°S, 145.0°E (D). Image credit: Byrne et al., doi: 10.1073/pnas.2025919118.$

Planetary Scientists Find Evidence for Crustal Block Tectonics on Venus

Jun 22, 2021 by News Staff

Using data collected by the synthetic aperture radar on NASA’s Magellan spacecraft, a team of planetary researchers has identified a pattern of tectonic...

Philae at work on the comet. Image credit: ESA / AOES Medialab.

Study: Comet 67P/Churyumov-Gerasimenko’s Interior is Less Dense than Its Surface

Sep 7, 2020 by News Staff

A new analysis of data gathered by the CONSERT (Comet Nucleus Sounding Experiment by Radio wave Transmission) instrument, a radar onboard ESA’s Rosetta...

An illustration of a quantum radar prototype. Image credit: Philip Krantz / Institute of Science and Technology Austria.

Researchers Create Prototype of Microwave Quantum Radar

May 12, 2020 by News Staff

A team of researchers from Austria, the U.S., the UK, and Italy has demonstrated a new technology called microwave quantum illumination that uses entangled...