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Feb 8, 2016 by News Staff
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Zipfilesvideoszip Site

: Unlike "lossy" compression (like converting a high-res video to a lower-bitrate MP4), zipping is lossless. This means when you extract a video from a ZIP, its resolution, frame rate, and audio quality remain identical to the original.

A ZIP file is an archive format that supports . When you "zip" video files, the computer looks for redundant patterns in the data to reduce the overall file size without permanently discarding any information. zipfilesvideoszip

: Because a ZIP can contain any file type, attackers may hide executables (.exe) inside an archive and name them "video.mp4.exe" to trick users into running malware. : Unlike "lossy" compression (like converting a high-res

: Modern antivirus software can usually scan inside ZIP files. However, if a ZIP is password-protected, the contents are encrypted, preventing security software from inspecting them for threats until they are extracted. When you "zip" video files, the computer looks

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Webb captured the auroral footprints of Io and Europa, providing spectral measurements for the first time, and revealing extreme changes in the physical properties within Io’s auroral footprint that are likely linked to the electrons crashing into the top of Jupiter’s atmosphere. Image credit: NASA / ESA / CSA / Webb / NIRCam / Jupiter ERS Team / Judy Schmidt / Katie L. Knowles, Northumbria University.

Webb Captures Io’s and Europa’s Auroral Footprints in Jupiter’s Atmosphere

Section of the Line Intensity Map created by charting the distribution and concentration of excited hydrogen (via the Lyman alpha wavelength) in the Universe around 10 billion years ago. The stars mark where HETDEX has found galaxies. The inset simulates the structure present in this map once it is zoomed in on and background noise is removed from the data. Image credit: Maja Lujan Niemeyer / Max Planck Institute for Astrophysics / HETDEX / Chris Byrohl / Stanford University.

Astronomers Find Hidden Structures in Early Universe

In this image, Hubble captures the very core of the billowing gas in the Cat’s Eye Nebula. Image credit: NASA / ESA / Hubble / Z. Tsvetanov.

Hubble and Euclid Telescopes Highlight Hidden Complexity of Cat’s Eye Nebula

This is a mosaic image, one of the largest ever taken by Hubble of the Crab Nebula, a 6-light-year-wide expanding remnant of a star’s supernova explosion. Japanese and Chinese astronomers recorded this violent event nearly 1,000 years ago in 1054, as did, almost certainly, Native Americans. Image credit: NASA / ESA / J. Hester / A. Loll, Arizona State University.

Astronomer Deciphers Crab Pulsar’s Zebra Stripes

This VLT/HAWK-I image shows the emission nebula RCW 36; while the dark clouds in the middle of the image make up the head and body of the bird of prey, the filaments extending away from the body to the left and right compose its wings; below it, is a mesmerising blue nebula with massive newly born stars, whose intense radiation make the gas around them glow brightly. Image credit: ESO / do Brito do Vale et al.

VLT Focuses on Brown Dwarfs and Infant Stars in RCW 36

This is an artist’s concept of the Jupiter’s moon Ganymede; two auroral ovals can be seen over northern and southern mid-latitudes. Image credit: NASA / ESA / G. Bacon, STScI / J. Saur, University of Cologne.

Ganymede’s Auroral Patches Reveal Shared Physics with Earth’s Aurorae

This image of the interstellar comet 3I/ATLAS was captured by the JANUS camera aboard ESA’s Juice spacecraft on November 6, 2025, just seven days after the comet made its closest approach to the Sun. At the time, Juice was about 66 million km (41 million miles) away from the comet. The inset in the image shows the same data, but processed to highlight the coma structure. The arrows in the top left indicate the direction in which the comet was moving (blue) and the relative direction of the Sun (yellow). Image credit: ESA / Juice / JANUS.

Juice Spies Interstellar Comet 3I/ATLAS

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