Mars has always held a special place in our hearts, likely from hints over the decades of perhaps finding signs of life, albeit fossilised and primitive. It’s been the subject of study from telescopes and space missions alike, most notably ESA’s Mars Express which has been observing the red planet for 20 years. Over the two decades of observation it has studied an amazing variety of atmospheric phenomenon which have now been catalogued in a new ‘Cloud Atlas.’ Many will be familiar to sky watchers on Earth but some are very different.
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Continuous human habitation of the Moon is the state aim of many major space-faring nations in the coming decades. Reaching that aim requires many tasks, but one of the most fundamental is feeding those humans. Shipping food consistently from Earth will likely be prohibitively expensive shortly, so DLR, Germany’s space agency, is working on an alternative. This semi-autonomous greenhouse can be used to at least partially feed the astronauts in residence on the Moon. To support that goal, a team of researchers from DLR released a paper about EVE, a robotic arm intended to help automate the operations of the first lunar greenhouse, at the IEEE Aerospace conference in March.
Of all the mysteries facing astronomers and cosmologists today, the “Hubble Tension” remains persistent! This term refers to the apparent inconsistency of the Universe’s expansion (aka. the Hubble Constant) when local measurements are compared to those of the Cosmic Microwave Background (CMB). Astronomers hoped that observations of the earliest galaxies in the Universe by the James Webb Space Telescope (JWST) would solve this mystery. Unfortunately, Webb confirmed that the previous measurements were correct, so the “tension” endures.
Optical interferometry has been a long-proven science method that involves using several separate telescopes to act as one big telescope, thus achieving more accurate data as opposed to each telescope working individually. However, the Earth’s chaotic atmosphere often makes achieving ground-based science difficult, but what if we could do it on the Moon? This is what a recent study presented at the SPIE Astronomical Telescopes + Instrumentation 2024 hopes to address as a team of researchers propose MoonLITE (Lunar InTerferometry Explorer) as part of the NASA Astrophysics Pioneers program. This also comes after this same team of researchers recently proposed the Big Fringe Telescope (BFT), which is a 2.2-kilometer interferometer telescope to be built on the Earth with the goal of observing bright stars.
Earlier this year, NASA selected a rather interesting proposal for Phase I development as part of their NASA Innovative Advanced Concepts (NIAC) program. It’s known as Swarming Proxima Centauri, a collaborative effort between Space Initiatives Inc. and the Initiative for Interstellar Studies (i4is) led by Space Initiative’s chief scientist, Marshall Eubanks. The concept was recently selected for Phase I development as part of this year’s NASA Innovative Advanced Concepts (NIAC) program.
A team of scientists presented a new gravity map of Mars at the Europlanet Science Congress 2024. The map shows the presence of dense, large-scale structures under Mars’ long-gone ocean and that mantle processes are affecting Olympus Mons, the largest volcano in the Solar System.
In 2003, strange features on Mars’s surface got scientists’ “spidey senses” tingling when they saw them. That’s when unusual “anareiform terrain” landforms appeared in images from the Mars Reconnaissance Orbiter. They’ve returned each year, spreading across the southern hemisphere surface.
We’ve officially entered a new era of private spaceflight. Yesterday, the crew of Polaris Dawn, a privately funded mission managed by SpaceX, officially performed the first private extra-vehicular activity, commonly known as a spacewalk. The spacewalk was a success, along with the rest of the mission so far. But it’s attracted detractors as well as supporters. Let’s take a look at the mission objectives and why some pundits are opposed to it.
The Milky Way’s outer reaches are coming into view thanks to the JWST. Astronomers pointed the powerful space telescope to a region over 58,000 light-years away called the Extreme Outer Galaxy (EOG). They found star clusters exhibiting extremely high rates of star formation.
The outer Solar System has been a treasure trove of discoveries in recent decades. Using ground-based telescopes, astronomers have identified eight large bodies since 2002 – Quouar, Sedna, Orcus, Haumea, Salacia, Eris, Makemake, and Gonggang. These discoveries led to the “Great Planet Debate” and the designation “dwarf planet,” an issue that remains contentious today. On December 21st, 2018, the New Horizons mission made history when it became the first spacecraft to rendezvous with a Kuiper Belt Object (KBO) named Arrokoth – the Powhatan/Algonquin word for “sky.”
Russia’s attack on Ukraine has delayed its launch, but the ESA’s Rosalind Franklin rover is heading toward completion. It was originally scheduled to launch in 2018, but technical delays prevented it. Now, after dropping Russia from the project because of their invasion, the ESA says it won’t launch before 2028.
Ground-based interferometry on Earth has proven to be a successful method for conducting science by combining light from several telescopes into acting like a single large telescope. But how can a ultraviolet (UV)/optical interferometer telescope on the Moon deliver enhanced science, and can the Artemis missions help make this a reality? This is what a recently submitted study to the SPIE Astronomical Telescopes + Instrumentation 2024 conference hopes to address as a team of researchers propose the Artemis-enabled Stellar Imager (AeSI) that, as its name implies, could potentially be delivered to the lunar surface via NASA’s upcoming Artemis missions. This proposal was recently accepted as a Phase 1 study through NASA’s Innovative Advanced Concepts (NIAC) program and holds the potential to develop revolutionary extremely high-angular resolution way of conducting science on other planetary bodies while contributing to other missions, as well.
Every year, the “Astronomy Photographer of the Year” competition provides incredible images of our night sky — whether they are stunning views of distant galaxies or dramatic photos of aurorae or other views from our home planet. This year is no different, and the awards were just announced at a special presentation at the Royal Observatory in Greenwich (ROG), England for the incredible 16th year of the competition. The event is sponsored by the ROG, supported by Liberty Specialty Markets and in association with BBC Sky at Night Magazine. For the 2024 competition there were over 3,500 entries from 58 countries.
On Tuesday, September 10th, at 5:23 a.m. EST (03:23 p.m. PST), the Polaris Dawn mission launched from NASA’s Kennedy Space Center in Florida, carrying a crew of four to Low Earth Orbit (LEO). This mission is the first of three that comprise the Polaris Program, a private spaceflight program organized by entrepreneur and private astronaut Jared Isaacman and financed by SpaceX. Since launching, the Resilience Crew Dragon spacecraft has flown higher than any crewed mission since the Apollo Era and passed through parts of the Van Allen radiation belt.
If you enjoyed this summer’s display of aurora borealis, thank the Sun’s corona. The corona is the Sun’s outer layer and is the source of most space weather, including aurorae. The aurora borealis are benign light shows, but not all space weather produces such harmless displays; some of it is dangerous and destructive.
A new book looks at the latest scientific insights versus a key question in astronomy and space science.
I’ve been an avid stargazer for a fair few decades now and not once have I seen anything that makes me believe we are being visited by aliens! My own experiences aside, there’s no evidence of alien visitations but it seems much of the population believes anything that they cannot immediately identify in the sky MUST be ailens. A new paper suggests there are costs associated with increasing claims such as disctractions to government programs and background noise that hampers science communication. How on Earth should we deal with it? If debunking doesn’t work, then maybe its time for a scientific investigation.
Jupiter’s moon, Io, is the most volcanic body in the Solar System. NASA’s Juno spacecraft has been getting closer and closer to Io in the last couple of years, giving us our first close-up images of the moon in 25 years.
Although stars are enormous, they’re extremely far away, and appear as point sources in telescopes. Usually, you never get to see more than a pixel. Now astronomers have used the Atacama Large Millimeter/submillimeter Array (ALMA) to resolve details on the surface of the star R Doradus and track its activity for 30 days. The images revealed giant, hot bubbles of gas 75 times larger than the entire Sun. R Doradus is 350 times larger than our Sun, but only 180 light-years away.
Mars is known for its unique geological features. Olympus Mons is a massive shield volcano 2.5 times taller than Mt. Everest. Hellas Planitia is the largest visible impact crater in the Solar System. However, Mars’ most striking feature is Valles Marineris, the largest canyon in the Solar System.
Ask any property inspector, and they’ll tell you one of the maxims of their profession – where there’s moisture, there’s mold. That relationship also holds true for the International Space Station. The interior climate on the ISS is carefully controlled, but if thrown out of whack, potentially dangerous mold could sprout overnight. A new paper by researchers at The Ohio State University explains why – and provides some insights into how we might prevent it if it does happen.