Ground Telescopes can adapt to satellite megaconstellations if they get Accurate Telemetry Data

The growing population of communication satellites such as Starlink and OneWeb is posing challenges for Earth-based astronomy facilities. Since such constellations will not be going away soon, astronomers want to find ways to work around the issue. It’s not going to be easy, considering that thousands and thousands of low-Earth satellites (LEOsats) could potentially be … Read more

Black Friday Space Deals live blog: Telescopes, star projectors, Lego and more

Refresh 2022-11-23T15:55:14.183Z Save 21% on the Celestron AstroMaster 70AZ telescope (Image credit: Jamie Carter) The Celestron AstroMaster 70AZ refractor telescope is currently at a discount of over 20% which makes a perfect gift for beginner astronomers this Black Friday. It features a 70mm aperture and a powerful 900mm focal length that takes you in for … Read more

Many Next-Generation Telescopes are carried on Balloons. Here’s What the Next Decade Holds in Balloon Astronomy

NASA’s Balloon Program Analysis Group recently presented a roadmap to NASA, to guide them on how to plan and fund future balloon astronomy programs. Balloons have been used for over a century to conduct physics experiments, astronomical observations and Earth observing work, but remain relatively unknown to the general public. Balloon astronomy shares many advantages … Read more

The 10 biggest telescopes on Earth

The biggest telescopes in the world are often the most successful at making new space discoveries, due to their ability to collect more light and delve into the universe’s history from impressive distances. Despite space observatories such as the Hubble Space Telescope (HST) and James Webb Space Telescope (JWST) being closer to the action, ground-based … Read more

Ground-based telescopes are key to DART asteroid mission success

For NASA’s DART spacecraft, the drama happens in space — but mission success relies on telescopes back on Earth. On Monday (Sept. 26), the Double Asteroid Redirection Test (DART) spacecraft will slam into a small space rock called Dimorphos — on purpose, at a staggering 4 miles (6.6 kilometers) per second. The exercise comes in … Read more

James Webb Space Telescope’s captures its first images of Mars

The James Webb Space Telescope (JWST) has captured its first images of Mars, viewing infrared light coming from the Red Planet with high sensitivity. The James Webb Space Telescope’s first images and spectra of Mars were released on Monday (Sept. 19) at the Europlanet Science Congress (opens in new tab) (EPSC) 2022. The images and … Read more

James Webb Space Telescope’s 1st exoplanet image. What we can learn.

This series of four images for the James Webb Space Telescope shows the first exoplanet (star) seen by the powerful infrared telescope. (Image credit: NASA/ESA/CSA, A Carter (UCSC), the ERS 1386 team, and A. Pagan (STScI)) This article was originally published at The Conversation. The publication contributed the article to Space.com’s Expert Voices: Op-Ed & … Read more

Hawaiʻi telescopes help uncover origins of castaway gamma-ray bursts

This image captured by the Gemini North telescope on Maunakea in Hawaiʻi reveals the previously unrecognized galactic home of the gamma-ray burst identified as GRB 151229A. Astronomers calculate that this burst, which lies in the direction of the constellation Capricornus, occurred approximately 9 billion years ago. Credit: International Gemini Observatory/NOIRLab/NSF/AURA An international team of astronomers … Read more

‘Twilight telescopes’ are finding ‘city-killer’ asteroids

When it comes to looking for steroids, we have a blind spot. It may seem counterintuitive, but the most important asteroid discoveries are now being made in twilight, when astronomers are able to look close to the horizon — and close to the sun — for little-known asteroids that orbit inside the orbits of Earth, … Read more

Gemini South telescope’s GHOST spectrograph captures first light observations of a bright, chemically rich star

This mosaic shows the two GHOST spectra of HD 222925, a remarkably bright, chemically complex star. This star is a prime example of the type of object that GHOST will investigate. The two GHOST spectra shown here, which were produced in the same single observation, measure light from around 350 nm to around 1015 nm. … Read more