Universe Today

January 8, 2024January 8, 2024 by Nancy Atkinson

JWST and Chandra Team Up for a Stunning View of Supernova Remnant Cassiopeia A

This image of Cassiopeia A comes from a combination of data from the Chandra X-ray telescope and the James Webb Space Telescope. Credit: X-ray: NASA/CXC/SAO; Optical: NASA/ESA/STScI; IR: NASA/ESA/CSA/STScI/Milisavljevic et al., NASA/JPL/CalTech; Image Processing: NASA/CXC/SAO/J. Schmidt and K. Arcand

NASA’s long-lived Chandra X-ray Observatory teamed up with JWST for the first time, producing this incredibly detailed image of the famous supernova remnant Cassiopeia A. JWST first looked at the remnant in April 2023, and noticed an unusual debris structure from the destroyed star, dubbed the “Green Monster.” The combined view has helped astronomers better understand what this unusual structure is, plus it uncovered new details about the explosion that created Cas A.

January 8, 2024January 8, 2024 by Andy Tomaswick

The First Launch of ULA’s Vulcan Goes Smoothly, but there’s a Problem with its Lander Payload

Space missions regularly test multiple new technologies in one go. It’s very common to have a single mission test out three or more new technologies, making them “flight-proven.” Unfortunately, that sometimes means that though one particular new technology, or even many of them, might succeed, one technology could work. At the same time, another one could fail, and that single failure might mean that several other technologies might never even get a chance for their day in the Sun. That seems to have happened with NASA’s first Commercial Lunar Payload Services (CLPS) mission. While the Vulcan rocket, developed by the United Launch Alliance (ULA), lifted off successfully, the Peregrine lander, developed by Astrobotic, seems to have run into an error that jeopardizes the rest of the mission.

January 7, 2024January 7, 2024 by Carolyn Collins Petersen

Uranus and Neptune are Actually Pretty Much the Same Color

Scientists reprocessed Voyager 2 images to get the "true" colors of Uranus and Neptune. Turns out they're a pretty blueish-green. Courtesy NASA/Irwin, et al, Anton Pozdnyakov.

In the late 1980s, the Voyager 2 spacecraft snapped the “canonical” up-close images of Uranus and Neptune. In those views, Uranus was a pretty greenish-blue and Neptune appeared a deep azure color. It turns out that both planets are pretty close in color: a greenish-blue more akin to Uranus’s appearance.

January 7, 2024January 7, 2024 by Matt Williams

NASA Selects the MAGGIE Solar-Powered Aircraft for the 2024 NIAC Program

Graphic depiction of Mars Aerial and Ground Global Intelligent Explorer (MAGGIE). Credit: Ge-Cheng Zha

Since 1998, the NASA Innovative Advanced Concepts program has fostered innovation by accepting new and unconventional proposals from the scientific community. Those selected are awarded funding to conduct early-stage technology studies that could lead to applications that help advance the agency’s scientific and exploration objectives. In a recent press statement, NASA announced the 13 concepts it has selected for Phase I development, which will receive a combined award of up to $175,000 in grants to assess the concepts’ feasibility and develop the technology further.

This year’s selectees range from a sample return from the surface of Venus, a fixed-wing aircraft for Mars, a swarm of probes to travel to Proxima Centauri and explore its system of exoplanets, and more. One of the more eye-catching is the Mars Aerial and Ground Global Intelligent Explorer (MAGGIE) proposed by Ge-Cheng Zha, a Professor of Aerodynamics at the Univeristy of Miami and the President of Coflow Jet LLC. The concept calls for a compact, fixed-wing, solar-powered aircraft capable of vertical take-off and landing (VTOL).

January 6, 2024January 31, 2024 by Mark Thompson

Titan’s “Magic Islands” Could Be Floating Blobs of Organic Solids

A false-color image based on Cassini data shows Ligeia Mare on Titan. Credit: Howard Zebker / Stanford

When the Cassini spacecraft returned radar scans of the surface of Saturn’s moon Titan, the results were mindblowing. It revealed giant lakes or seas of liquid methane, a complete absence of waves and what seemed to be islands in the giant bodies of liquid. Now a team of scientists think they may be blobs of organic molecules that form in the atmosphere, collect in the lakes and float around!

January 6, 2024January 6, 2024 by Evan Gough

Japan’s New X-Ray Observatory Sees First Light

Supernova remnant N132D lies in the central portion of the Large Magellanic Cloud, a dwarf galaxy about 160,000 light-years away. XRISM’s Xtend captured the remnant in X-rays, displayed in the inset. Although bright in X-rays, the stellar wreckage is almost invisible in the ground-based background view taken in optical light. Credit: Inset, JAXA/NASA/XRISM Xtend; background, C. Smith, S. Points, the MCELS Team and NOIRLab/NSF/AURA

XRISM, the X-ray Imaging and Spectroscopy Mission, is a joint NASA/JAXA mission led by JAXA. The X-ray space telescope began its mission in low-Earth orbit on September 6th, 2023. Science operations won’t begin until later this year, but the satellite’s science team has released some of the telescope’s first images.

January 6, 2024January 6, 2024 by Brian Koberlein

Multiple Supernova Remnants Merging in a Distant Nebula

The nebula 30 Doradus B seen in x-ray, optical, and visible light. Credit: X-ray: NASA/CXC/Penn State Univ./L. Townsley et al.; Optical: NASA/STScI/HST; Infrared: NASA/JPL/CalTech/SST; Image Processing: NASA/CXC/SAO/J. Schmidt, N. Wolk, K. Arcand

The key to astronomy is careful observation. Unlike many sciences, astronomers can’t often do their work in a lab. Sure, they can build space telescopes and large ground observatories, but even with tools as simple as sticks and stones astronomers were able to change our understanding of the Universe with patience and observation. That tradition still holds true today, as a recent study in The Astronomical Journal shows.

January 6, 2024January 7, 2024 by Laurence Tognetti

Should We Send Humans to Pluto?

Universe Today has examined the potential for sending humans to Jupiter’s icy moon, Europa, the planet Venus, and Saturn’s largest moon, Titan, all despite their respective harsh environments and vast distances. These conversations with planetary science experts determined that humans traveling to these worlds in the foreseeable future could be possible, despite the harsh conditions and travel time, specifically to Titan.

January 5, 2024January 7, 2024 by Matt Williams

ESA Gives Us a Glimpse of its Future Space Exploration Plans with a Cool New Video

The European Space Agency (ESA) has made incredible contributions to space exploration and space-based science. Last year, the agency launched the Euclid space telescope, which will survey the Universe back to 3 billion years after the Big Bang to measure cosmic expansion and the influence of Dark Energy. After more than a decade of development, the Ariane 6 launch vehicle conducted its first full-scale dress rehearsal, which included an engine fire test. In a recent video, the ESA showcased its plans for the future, which include some new launch vehicles and engine technology.

January 5, 2024January 5, 2024 by Carolyn Collins Petersen

Hubble Watches an Exoplanet Atmosphere Change Over Three Years

An artist impression of Tylos, also known as WASP-121 b. It has a hot exoplanet atmosphere that seems to be changing over time. Courtesy: NASA, ESA, Q. Changeat et al., M. Zamani (ESA/Hubble)

If you want to know more about an exoplanet atmosphere, watch how it changes over time. That’s the mantra of a group of astronomers who just reported on conditions at Tylos, otherwise known as WASP-121 b.