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.
Continue reading “Can a Greenhouse with a Robotic Arm Feed the Next Lunar Astronauts?”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.
Since the JWST made its observations, numerous scientists have suggested that the existence of Early Dark Energy (EDE) might explain the Hubble Tension. In a recent study supported by NASA and the National Science Foundation (NSF), researchers from the Massachusetts Institute of Technology (MIT) suggested that EDE could resolve two cosmological mysteries. In addition to the Hubble Tension, it might explain why Webb observed as many galaxies as it did during the early Universe. According to current cosmological models, the Universe should have been much less populated at the time.
Continue reading “Early Dark Energy Could Resolve Two of the Biggest Mysteries in Cosmology”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.
Continue reading “Studying Stars from the Lunar Surface with MoonLITE, Courtesy of NASA’s Commercial Lunar Payload Services”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.
Similar to other proposals involving gram-scale spacecraft and lightsails, the “swarming” concept involves accelerating tiny spacecraft with a laser array to up to 20% the speed of light. This past week, on the last day of the 2024 NASA Innovative Advanced Concepts (NIAC) Symposium, Eubanks and his colleagues presented an animation illustrating what this mission will look like. The video and their presentation provide tantalizing clues as to what scientists expect to find in the closest star system to our own. This includes Proxima b, the rocky planet that orbits within its parent star’s circumsolar habitable zone (CHZ).
Continue reading “New Video Shows How Tiny Spacecraft Will “Swarm” Proxima Centauri”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.
Continue reading “A Gravity Map of Mars Uncovers Subsurface Mysteries”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.
Continue reading “Scientists Recreate Mars Spiders in the Lab”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.
Continue reading “Polaris Dawn is Away, Sending Another Crew Into Orbit to Perform the First Private Spacewalk”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.
Continue reading “The Outer Reaches of the Milky Way are Full of Stars, and the JWST is Observing Them”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.”
Since 2006, the Subaru Telescope at the Mauna Kea Observatory in Hawaii has been observing the outer Solar System to search for other KBOs the New Horizons mission could study someday. In that time, these observations have led to the discovery of 263 KBOs within the traditionally accepted boundaries of the Kuiper Belt. However, in a recent study, an international team of astronomers identified 11 new KBOs beyond the edge of what was thought to be the outer boundary of the Kuiper Belt. This discovery has profound implications for our understanding of the structure and evolution of the Solar System.
Continue reading “More Bodies Discovered in the Outer Solar System”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.
But when it does launch and then land on Mars, it will do something no other rover has done: drill down two meters into Mars and collect samples.
Continue reading “How the ESA’s Rosalind Franklin Rover Will Drill for Samples on Mars”