NASA has Simulated a Tiny Part of the Moon Here on Earth
Universe Today
by Nancy Atkinson
2h ago
Before going to the Moon, the Apollo astronauts trained at various sites on Earth that best approximated the lunar surface, such as the volcanic regions Iceland, Hawaii and the US Southwest.  To help prepare for upcoming robotic and human Artemis missions, a newly upgraded “mini-Moon” lunar testbed will allow astronauts and robots to test out realistic conditions on the Moon including rough terrain and unusual sunlight. The Lunar Lab and Regolith Testbed at the Ames Research Center in California simulates conditions on the Moon in a high-fidelity environment, allowing researchers to test ..read more
Visit website
Astronomers Prepare to Launch LuSEE Night, A Test Observatory on the Far Side of the Moon
Universe Today
by Paul M. Sutter
2h ago
Astronomers have not yet been able to map large portions of the radio emissions from our universe because of interference from the Earth itself. A team of astronomers hopes to change that, beginning with the LuSEE Night mission to the far side of the Moon. It will launch in 2025 and chart a new pathway to Lunar observatories. The Earth is really loud in the radio, especially at frequencies below 20 megahertz. The ionosphere of the planet itself crackles at those frequencies, obscuring radio emissions from more distant sources. Plus we use low frequency radio waves for communication and radar s ..read more
Visit website
Astronomers Find 25 Fast Radio Bursts That Repeat on a Regular Basis
Universe Today
by Matt Williams
15h ago
Like Gravitational Waves (GWs) and Gamma-Ray Bursts (GRBs), Fast Radio Bursts (FRBs) are one of the most powerful and mysterious astronomical phenomena today. These transient events consist of bursts that put out more energy in a millisecond than the Sun does in three days. While most bursts last mere milliseconds, there have been rare cases where FRBs were found repeating. While astronomers are still unsure what causes them and opinions vary, dedicated observatories and international collaborations have dramatically increased the number of events available for study. A leading observatory is ..read more
Visit website
Molecular Clouds Have Long Lives By Constantly Reassembling Themselves
Universe Today
by Paul M. Sutter
15h ago
Astronomers have recently discovered that giant clouds of molecular hydrogen, the birthplace of stars, can live for tens of millions of years despite the facts that individual molecules are constantly getting destroyed and reassembled. This new research helps place a crucial piece of understanding in our overall picture of how stars are born. In order to make stars you first need giant clouds of molecular hydrogen gas. These are the reservoirs that can undergo catastrophic collapse. When this happens dozens or even hundreds of stars can appear at once. Without these reservoirs of gas, you can ..read more
Visit website
Nuclear Rocket In 2027, JWST Problems, Starship WDR
Universe Today
by Anton Pozdnyakov
21h ago
Starship completes its wet-dress rehearsal, another problem for Webb, a nuclear rocket test is coming, and more cool NIAC grants. Starship Wet Dress Rehersal SpaceX made another important step towards the first orbital test of Starship. This week they performed a full wet-dress rehearsal, meaning that both stacked Starship and Super Heavy booster were filled up with fuel, just as if they were going to launch. The test was successful. Now Ship 24 was taken off the booster and SpaceX are getting ready to perform a test fire of all the 33 Raptor v2 engines of Super Heavy. Webb’s NIRISS Problems ..read more
Visit website
Astronomers See Flashes on the Sun That Could be a Sign of an Upcoming Flare
Universe Today
by Nancy Atkinson
21h ago
Using data from the Solar Dynamics Observatory, scientists have discovered new clues that could help predict when and where the next solar flare might blast from the Sun. Researchers were able to identify small flashes in the upper layers of the corona – the Sun’s atmosphere – found above regions that would later flare in energetic bursts of light and particles released from the Sun. The scientists compared the flashes to small sparklers before the big fireworks. “We can get some very different information in the corona than we get from the photosphere, or ‘surface’ of the Sun,” said KD Leka ..read more
Visit website
A Martian Meteorite Contains Organic Compounds. The Raw Ingredients for Life?
Universe Today
by Laurence Tognetti
1d ago
In a recent study published in Sciences Advances, an international team of scientists led by the Technical University of Munich examined the Martian meteorite Tissint, which fell near the village of Tissint, Morocco, on July 18, 2011, with pieces of the meteorite found as far as approximately 50 kilometers (30 miles) from the village. What makes Tissint intriguing is the presence of a “huge organic diversity”, as noted in the study, which could help scientists better understand if life ever existed on Mars, and even the geologic history of Earth, as well. “Mars and Earth share many aspects of ..read more
Visit website
Beautiful New Hubble Photo Shows Hot, Young Variable Stars in the Orion Nebula
Universe Today
by Nancy Atkinson
2d ago
Here’s another striking image from the venerable Hubble Space Telescope. These billows of blue and red show a detailed look at a small portion of the famous Orion Nebula. But what really catches the eye are the brilliant stars with the cross-shaped diffraction spikes — a hallmark of Hubble images. In the center is the bright variable star V 372 Orionis and a smaller companion star in the upper left is named BD-05 1307. V 372 Orionis, also known as HD 36917 or Ori 47, is a so-called Orion variable — a variable star which exhibits irregular variations in its brightness. Orion variables are often ..read more
Visit website
It’s Already Hard Enough to Block a Single Star’s Light to See its Planets. But Binary Stars? Yikes
Universe Today
by Evan Gough
3d ago
Detecting exoplanets was frontier science not long ago. But now we’ve found over 5,000 of them, and we expect to find them around almost every star. The next step is to characterize these planets more fully in hopes of finding ones that might support life. Directly imaging them will be part of that effort. But to do that, astronomers need to block out the light from the planets’ stars. That’s challenging in binary star systems. When astronomers need to block out starlight in order to examine a nearby planet, they use a telescopic attachment called a coronagraph. The Hubble Space Telescope has ..read more
Visit website
Europe Will be Building the Transfer Arm for the Mars Sample Return Mission
Universe Today
by Nancy Atkinson
3d ago
Now that the Perseverance rover has dropped off ten regolith and rock sample tubes for a future sample return mission to retrieve, the plans for such a mission are coming together. The mission is a joint venture between NASA and the European Space Agency, and ESA has agreed to build a 2.5-meter-long robotic arm to pick up tubes and then transfer them to a rocket for the first-ever Mars samples to be brought to Earth. ESA says the Sample Transfer Arm (STA) will likely be autonomous, with a large range of movements and seven degrees of freedom. Cameras and sensors will assist the arm, which wil ..read more
Visit website

Follow Universe Today on Feedspot

Continue with Google
OR