Hubble Space Telescope
Search documents
Why we measure the universe | Professor Wendy Freedman | TEDxChicago
TEDx Talks· 2026-02-03 18:00
Please welcome Professor Wendy Freedom. [Applause] I am standing outside of a cabin, a young girl of seven with my father. We are looking up at a dark sky with more stars than I've ever seen before.And my father is explaining to me that the stars are at unimaginable distances from us and that some of them might not even be there anymore. We're looking at them as they were when their light began its journey to us and some of them may have died in the meantime. The journey might be many thousands and thousand ...
Interstellar object 3I/Atlas spotted passing by Mars in new images
NBC News· 2025-10-08 01:54
Space Observation & Technology - ExoMars orbiter captured images similar to those from the Hubble Space Telescope, but with lower resolution due to a smaller mirror (2.4 meters in diameter for Hubble) [2] - ExoMars camera resolution is about 340, with the glow around 3i Atlas spanning approximately two resolution elements [3] - High-rise camera on the Mars Reconnaissance Orbiter (50 cm in diameter) could provide a pixel size of 30 kilometers when 3i Atlas was closest to Mars at a distance of 30 million kilometers, but data retrieval is hindered by the NASA government shutdown [4] Image Analysis & Interpretation - A distinct stripe in the first images from NASA's Perseverance rover is likely motion blur, potentially caused by one of Mars' moons (Phobos or Demos) [6][7] - The elongated image is consistent with a long exposure (around 10 seconds) of one of Mars' moons, showing a sequence of spheres [8] Object 3i Atlas Assessment - Object 3i Atlas is estimated to have a 30-40% chance of not being a natural object due to anomalies such as its lack of a typical comet tail, its location in the plane of the planets, its proximity to Mars and Jupiter, its large size, and its extension glow towards the sun [9] - Monitoring of 3i Atlas is necessary to determine if it has a technological origin that could pose a threat to humanity [10] Policy Recommendation - A white paper has been submitted to the United Nations suggesting the creation of a committee to evaluate signatures of objects and alert against potential threats [10]