Sealed letters folded in intricate patterns have gone unread for more than 300 years, but now researchers have been able to tease out their contents with a combination of X-ray imaging and unfolding algorithms Source: https://www.newscientist.com/article/2269678-algorithm-reveals-contents-of-fragile-letters-sealed-for-300-years/?utm_campaign=RSS%7CNSNS&utm_source=NSNS&utm_medium=RSS&utm_content=home…
Tag: imaging
A new planet next door?
Astronomers have spotted “something” near Alpha Centauri A, in the star system nearest our Earth and sun. If it turns out to be a planet, it’ll be the first time a planet has been directly imaged within the habitable zone of a star. Source: https://earthsky.org/space/alpha-centauri-a-planet-candidate-direct-image-discovery…
There’s a Tantalizing Sign of a Habitable-Zone Planet in Alpha Centauri
An international team of astronomers has found signs that a habitable planet may be lurking in Alpha Centauri, a binary star system a mere 4.37 light-years away. It could be one of the closest habitable planet prospects to date, although it’s probably not much like Earth if it exists. From a report: The new findings: The Alpha Centauri system’s potential to…
Mars atmosphere shedding charged particles onto Phobos?
New research suggests that particles escaping from Mars’ atmosphere have been accumulating on the surface of the planet’s largest moon Phobos for billions of years. They could provide important new details about the history of both worlds. Source: https://earthsky.org/space/mars-atmosphere-history-phobos-soil…
Robots Are Speeding Up the Most Boring Job In Astronomy
sciencehabit writes: The Sloan Digital Sky Survey (SDSS) has, for more than 20 years, pioneered collecting spectra from millions of astronomical objects, from nearby stars to supermassive black holes. But this year, the survey is making a change: Instead of employing a small team of technicians for the daily chore of plugging optical fibers into preprepared plates so that — when…
Low-cost approach to scanning historic glass plates yields an astronomical surprise
You never know what new discoveries might be hiding in old astronomical observations. For almost a hundred years starting in the late 19th century, emulsion-coated dry glass plate photography was the standard of choice used by large astronomical observatories and surveys for documenting and imaging the sky. These large enormous glass plate collections are still out there around the world, filed…
Scientists Use Satellite Imagery To Count Elephants
Scientists from a trio of universities have combined satellite imagery with deep learning to detect elephants from space. The goal is to help protect these endangered species from poachers or habitat destruction. Their study was published in the journal Ecology and Conservation. Interesting Engineering reports: The team’s method proved comparable to human detection accuracy and could help solve a number of…
Fornax A galaxy investigated with AstroSat
Using the AstroSat spacecraft, Indian astronomers have performed an imaging and spectroscopic study of the Fornax A galaxy. Results of the study, published January 13 on the arXiv preprint server, provide more clues on the properties of the galaxy and ultraviolet emission from this source. Source: https://phys.org/news/2021-01-fornax-galaxy-astrosat.html…
6 space missions to look forward to in 2021
Here are some of the space missions to keep an eye out for in 2021. Source: https://earthsky.org/space/6-space-missions-2021-artemis-chandrayaa3-jameswebb…
Doubling the number of known gravitational lenses
Data from the DESI (Dark Energy Spectroscopic Instrument) Legacy Imaging Surveys have revealed over 1200 new gravitational lenses, approximately doubling the number of known lenses. Discovered using machine learning trained on real data, these warped and stretched images of distant galaxies provide astronomers with a flood of new targets with which to measure fundamental properties of the Universe such as the…