Category: Solar System

Our solar system

Cracking! Some binary black holes may roll around each other in egg-shaped orbits

NeRD

Black hole week reaches its conclusion today (May 10), and there’s no better way to mark the occasion than with some “eggs-traordinary” black hole science. Using gravitational wave measurements by the Laser Interferometer Gravitational-Wave Observatory (LIGO), based in the U.S., and the Virgo and KAGRA detectors, located in Italy and Japan, respectively, scientists have found that the orbits of some binary black holes could be egg-shaped and exhibit a curious wobble. This research is more than a mere curiosity (and an “eggs-cuse” to crack some bad egg-related puns). The discovery…

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NASA’s Roman Space Telescope will hunt for the universe’s 1st stars — or their shredded corpses, anyway

NeRD

NASA’s forthcoming Nancy Grace Roman Telescope could use the grisly death of stars ripped apart by black holes to hunt the universe’s first population of stellar bodies. These early stars, referred to (somewhat confusingly) as Population III (Pop III) stars, were very different from the sun and other stars seen in the cosmos today. That’s because the universe wasn’t yet filled with “metals,” the term astronomers use to describe elements heavier than hydrogen and helium.  Pop III stars arose just a few hundred million years after the Big Bang and…

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4 large incoming solar bursts could supercharge the auroras this weekend

NeRD

The National Oceanic and Atmospheric Administration’s Space Weather Prediction Center (SWPC) has bumped up this weekend’s geomagnetic storm watch to a level G4, the second highest on the scale. The change comes as solar activity continues at high levels and at least four coronal mass ejections (CMEs) propel toward Earth. According to the NOAA’s SWPC, to have a watch at this level is rare, but it is indeed issued when there’s a high likelihood that several CMEs will reach Earth and create “highly elevated” geomagnetic activity. As we’ve reported lately,…

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Sierra Space’s 1st Dream Chaser space plane aces key tests. Next stop: Florida launch site.

NeRD

The private Dream Chaser space plane is closer to reaching the final frontier than ever before, with a completed checklist from its environmental testing phase and preparations underway to send it to Florida for final testing ahead of launch.   Three months ago, Space.Com gave you up-close looks at Sierra Space’s inaugural Dream Chaser space plane at NASA’s Neil Armstrong Test Facility in Ohio. Since then, the robotic space plane, named “Tenacity,” and its Shooting Star cargo module have successfully completed a series of assessments to prepare them for space’s…

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NASA’s Nancy Grace Roman Telescope will hunt for tiny black holes left over from the Big Bang

NeRD

Black hole week is in full swing, and to celebrate, NASA has explained how its next major astronomical instrument, the Nancy Grace Roman Space Telescope, will hunt for tiny black holes that date back to the Big Bang. When we think of black holes, we tend to picture vast cosmic monsters like stellar-mass black holes with masses tens to hundreds of times that of the sun. We may even picture supermassive black holes with masses millions (or even billions) of times that of the sun sitting at the hearts of…

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Boeing’s Starliner rolled off launch pad to replace ‘buzzing’ rocket valve (photo)

NeRD

Boeing’s Starliner capsule has left the launch pad. Starliner and its rocket ride, a United Launch Alliance (ULA) Atlas V, rolled off the pad at Florida’s Cape Canaveral Space Force Station today (May 8), heading to an assembly building at the site so scientists can replace a misbehaving valve in the launcher’s upper stage. The duo could be back soon, however: They’re scheduled to launch no earlier than May 17, kicking off Starliner’s first-ever astronaut mission, a trial run to the International Space Station (ISS) called Crew Flight Test (CFT).…

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A failed star and an ammonia trail could reveal how some giant exoplanets form

NeRD

Astronomers now have a way to figure out how gas-giant planets form, thanks to a discovery by the James Webb Space Telescope (JWST) of ammonia “isotopologues,” which are molecules that contain the same elements but with differing numbers of neutrons. The nucleus of an atom is made from a bunch of protons and neutrons, and while the number of protons within an element does not change — for example, carbon atoms always contain six protons and nitrogen atoms always have seven protons — the number of neutrons can vary. When…

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World’s largest visible light telescope spies a galaxy cluster warping spacetime

NeRD

When astronomers look at galaxies, they’re often conducting a sort of archaeology. Well, cosmic archeology.  Basically, by examining what a galaxy looks like and how it interacts with its nearest galactic neighbors, it’s possible to reconstruct that galaxy’s history. And one tool that astronomers can use for such work is the VLT Survey Telescope (VST), the world’s largest visible-light telescope. Now, the VST has released a triptych of images depicting some of those distant galaxies necessary in uncovering galactic pasts. One image depicts ESO 510-G13, a galaxy 150 million light-years…

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Next-gen satellites will paint a clearer picture of a changing Earth

NeRD

Thanks to next-generation satellite systems scientists have in place, like the National Oceanic and Atmospheric Administration’s GOES-R series, scientists are able to get high-definition images of Earth faster than ever before. This is data that helps paint a full picture of our planet; the satellites can be thought of as in collaboration with one another, using special tools to make measurements and take observations that would otherwise be nearly impossible to perform from the ground directly. Yet, as our climate continues to change at a rapid rate due to human…

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Could alien life be hiding in the rings of Saturn or Jupiter?

NeRD

The search for life beyond Earth has driven seekers to scout all sorts of potential habitats — not just on the growing list of known Earth-like exoplanets, but in other places within our own solar system.  The first choice that comes to mind is likely Mars, which some scientists believe still holds oases of liquid water beneath its barren surface, Not long ago, the detection of phosphine, a possible indicator of biological decay, in the atmosphere of Venus set off debate about whether life could exist in that hellishly hot…

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