Universe Today News Feeds

  • Bright Ejecta Reveals a Fresh Crater on Mars
    by Andy Tomaswick on May 17, 2021 at 11:41 am

    Meteors hit much harder on Mars than they do on the Earth.  Lack of atmosphere obviously contributes to that, but its proximity to the asteroid belt also makes the red planet a more likely target for some gravitationally disturbed rock to run into.  Now that we have a satellite infrastructure consistently monitoring Mars, we are … Continue reading “Bright Ejecta Reveals a Fresh Crater on Mars” The post Bright Ejecta Reveals a Fresh Crater on Mars appeared first on Universe Today.

  • 60 Years Later, is it Time to Update the Drake Equation?
    by Matt Williams on May 16, 2021 at 8:22 pm

    On the 60th anniversary of the famous Drake Equation, a new study considers whether or not it is still of value to the search for extraterrestrial intelligence (SETI) The post 60 Years Later, is it Time to Update the Drake Equation? appeared first on Universe Today.

  • What’s the Best Way to Water Plants in Space?
    by Scott Alan Johnston on May 16, 2021 at 6:52 pm

    Humans have maintained a continuous presence in space on the International Space Station (ISS) for more than 20 years now. It is our longest-running and most comprehensive experiment in long-duration spaceflight. But the ISS is continually supplied with consumables – food, water, and oxygen – so astronauts are largely reliant on Earth. If Humanity is … Continue reading “What’s the Best Way to Water Plants in Space?” The post What’s the Best Way to Water Plants in Space? appeared first on Universe Today.

  • Hydroxyl (OH) Seen for the First Time in an Exoplanet Atmosphere
    by Paul M. Sutter on May 15, 2021 at 9:26 pm

    The molecule hydroxyl (HO) is common on Earth, but astronomers have not yet determined how abundant it is on other worlds. For the first time, astronomers have conclusively detected it in the atmosphere of an ultra-hot Jupiter, WASP-33b. WASP-33b is a strange exoplanet. 400 lightyears away from us, the planet is known as an ultra-hot … Continue reading “Hydroxyl (OH) Seen for the First Time in an Exoplanet Atmosphere” The post Hydroxyl (OH) Seen for the First Time in an Exoplanet Atmosphere appeared first on Universe Today.

  • Astronomers Measure the Background Brightness of the Night sky Across the World. Canary Islands are the Darkest in the Survey
    by Andy Tomaswick on May 15, 2021 at 4:15 pm

    Being able to look up at a clear, dark sky is becoming more and more rare in the rich world.  Authors, artists, and even scientists have started to express concern about what our lack of daily exposure to a dark night time sky might mean for our psyche and our sense of place in the … Continue reading “Astronomers Measure the Background Brightness of the Night sky Across the World. Canary Islands are the Darkest in the Survey” The post Astronomers Measure the Background Brightness of the Night sky Across the World. Canary Islands are the Darkest in the Survey appeared first on Universe Today.

  • Massive Stars Mix Hydrogen in Their Cores, Causing Them to Pulse Every few Hours or Days
    by Brian Koberlein on May 15, 2021 at 2:18 pm

    Blue giant stars have a convective core that allows them to shine much longer. The post Massive Stars Mix Hydrogen in Their Cores, Causing Them to Pulse Every few Hours or Days appeared first on Universe Today.

  • Older Stars Rotate Faster Than Expected
    by Paul M. Sutter on May 14, 2021 at 8:38 pm

    Older stars should slow down, but new observations reveal that they have just as much of a spring in their step as their younger cousins. Astronomers suspect that complex interactions with the star’s magnetic field might be to blame. All stars spin. And all stars have magnetic fields. As they age, they should slowly spin … Continue reading “Older Stars Rotate Faster Than Expected” The post Older Stars Rotate Faster Than Expected appeared first on Universe Today.

  • Concerns About James Webb’s Ariane 5 Rocket Might Push the Launch Back
    by Nancy Atkinson on May 14, 2021 at 5:03 pm

    A new report from the US Government Accountability Office (GAO) says that the launch of the long-awaited, highly anticipated James Webb Space Telescope (JWST) will very likely be delayed due to an anomaly identified in the Ariane 5 launch vehicle.  Launch for JWST is currently scheduled for October 31, 2021, but that date could slip … Continue reading “Concerns About James Webb’s Ariane 5 Rocket Might Push the Launch Back” The post Concerns About James Webb’s Ariane 5 Rocket Might Push the Launch Back appeared first on Universe Today.

  • Exploding Stars are Titanium Factories
    by Paul M. Sutter on May 13, 2021 at 10:35 pm

    If you’re a fan of titanium, you should head to the nearest supernova. You’ll get more than enough of it. And its presence can help astronomers understand how supernovae work. We understand the basic picture of how the most massive stars die. Once an iron core fuses in their centers, they stop producing energy from … Continue reading “Exploding Stars are Titanium Factories” The post Exploding Stars are Titanium Factories appeared first on Universe Today.

  • Webb Fully Unfurls for the Last Time on Earth. The Next Time Will Be in Space
    by Nancy Atkinson on May 13, 2021 at 9:10 pm

    The primary mirror of the long-awaited James Webb Space Telescope (JWST) was opened for the last time on Earth before the launch of the observatory, currently scheduled for October 31, 2021. During some of the final checkouts before the telescope heads to space, engineers commanded the 18 hexagonal mirrors to fully expand and lock into … Continue reading “Webb Fully Unfurls for the Last Time on Earth. The Next Time Will Be in Space” The post Webb Fully Unfurls for the Last Time on Earth. The Next Time Will Be in Space appeared first on Universe Today.