Robot Rollin’ Justin is a pioneer in testing how astronauts can control a machine on another world. He just finished a test on simulated sands of a Mars-like world.
Category: space – Page 370
A Giant Planet Seems to Be Lurking Unseen in Our Solar System
Our Solar System is a pretty busy place. There are millions of objects moving around – everything from planets, to moons, to comets, and asteroids. And each year we’re discovering more and more objects (usually small asteroids or speedy comets) that call the Solar System home.
Astronomers had found all eight of the main planets by 1846. But that doesn’t stop us from looking for more. In the past 100 years, we’ve found smaller distant bodies we call dwarf planets, which is what we now classify Pluto as.
The discovery of some of these dwarf planets has given us reason to believe something else might be lurking in the outskirts of the Solar System.
Hubble Sees Evaporating Planet Getting the Hiccups
A youthful planet has been exhibiting unpredictable alterations in its atmosphere during each revolution around its parent star.
A young planet, situated approximately 32 light-years from Earth, has been exhibiting dynamic changes in its atmosphere during each revolution around its parent star. The Hubble Space Telescope made this fascinating discovery as it observed the planet orbiting AU Microscopii (AU Mic), a remarkably active red dwarf star.
During one of Hubble’s initial observations, it was noted that the planet appeared to be retaining its atmosphere steadily. However, there was a twist to this finding. Approximately a year and a half later, Hubble’s follow-up observations brought to… More.
A young planet whirling around a petulant red dwarf star is changing in unpredictable ways orbit-by-orbit.
NASA astronaut controls Earth robots while flying 17,150 mph aboard ISS
The test is part of NASA and ESA’s future plans for controlling robots on the Moon’s surface from the lunar Gateway station.
NASA astronaut Frank Rubio recently controlled a small team of robots on Earth while flying aboard the International Space Station (ISS), a blog post from the European Space Agency (ESA) reveals.
The test was carried out in order to demonstrate and investigate the capacity for using remote-controlled robots for future lunar exploration.
Destination Psyche: NASA Spacecraft Prepares for Epic 2.5-Billion-Mile Voyage
Engineers and technicians at Cape Canaveral are preparing the Psyche spacecraft for liftoff, which is slated for October 5.
With less than 100 days remaining before its October 5 launch, NASA’s Psyche spacecraft is undergoing final preparations at Cape Canaveral, Florida. Teams of engineers and technicians are working diligently, essentially around the clock, to ensure the orbiter is ready to journey 2.5 billion miles (4 billion kilometers) to a metal-rich asteroid that may tell us more about planetary cores and how planets form.
The mission team recently completed a comprehensive test campaign of the flight software and installed it on the spacecraft, clearing the hurdle that kept Psyche from making its original 2022 launch date.
Giant Swirling Plasma Waves Detected at The Edge of Jupiter’s Magnetosphere
Giant waves have been found swirling in the plasma at the boundary of Jupiter’s magnetosphere, scientists have found.
Data from Juno suggests the Jupiter probe regularly dips through these waves, invisible to the naked eye, as it orbits the giant planet. The discovery helps astronomers understand how mass and energy is transferred from the solar wind to the Jovian planetary environment.
Actually, such waves are not unknown in the Solar System. They’re known as Kelvin-Helmhotz waves, and they occur when there’s a difference in velocity at the boundary between two fluids. They can commonly be seen where wind blows across the surface of lakes and oceans, between currents in water, or even among bands of clouds in a planet’s atmosphere.
Earth’s evolving geodynamic regime recorded by titanium isotopes
Powders of samples were weighed into precleaned Savillex beakers and dissolved with mixtures of 22 M HF and 14 M HNO3 acids in a 2:1 volume ratio. The modern OIBs and four reference materials (that is, BHVO-2, BCR-2, AGV-2 and BIR-1) were digested on a hot plate at 120 °C for four days. Note that all chondrite and Archaean ultramafic/mafic rock samples were digested in Parr bomb vessels at 220 °C for three days to ensure full dissolution of refractory phases. Dissolution of the dried samples in 5–10 ml 6 M HCl at 120 °C and evaporation was carried out several times to decompose the fluorides formed from HF digestion until clear solutions were obtained. An aliquot of each sample was taken and spiked with a prepared 47 Ti–49 Ti double spike to determine in advance the Ti concentration using an iCAP RQ inductively coupled plasma mass spectrometer at the Centre for Star and Planet Formation (StarPlan) at the University of Copenhagen. Afterwards, aliquots containing 6 µg Ti were taken and mixed with a 47 Ti–49 Ti double spike as described previously in ref. 34. The dried mixtures were dissolved with 6 M HCl at 120 °C overnight to ensure sample–spike equilibration.
Titanium was separated from matrix elements following a three-step purification protocol using AG1x8 (200–400 meshes) and DGA resins34,68, that is, first to separate Fe with 6 M HCl elution on AG1x8 columns, second to remove most of the major and trace elements through 12 M HNO3 elution and to collect Ti with Milli-Q H2O on DGA columns and third to purify Ti from the remaining matrix elements with 4 M HF cleaning on AG1x8 columns. An extra DGA pass can be carried out to remove trace amounts of Ca and Cr in the final Ti cuts. To destroy the resin particles and organics from column chemistry, the Ti cuts were treated with 14 M HNO3 at 120 °C before storage in 0.5 M HNO3 + 0.01 M HF acids.
Titanium isotopic compositions of the purified samples were measured using the ThermoFisher Scientific Neoma Multicollector ICP-MS. Sample solutions with 500–800 ppb Ti dissolved in 0.5 M HNO3 + 0.01 M HF were introduced into the multicollector inductively coupled plasma source mass spectrometer by means of an APEX HF desolvating nebulizer from Elemental Scientific and a sapphire injector was used instead of the quartz-made injector to reduce the production of silicon fluorides from the use of HF solvent. An actively cooled membrane desolvation component was attached after the APEX to suppress oxide formation and to stabilize the signals, and N2 gas at a flow rate of a few ml min−1 was added to improve the sensitivity. Such a setting typically provides an intensity of around 15 V on 48 Ti+ at an uptake rate of about 50 μl min−1 for a 600-ppb Ti solution under a medium mass-resolution mode.
OSIRIS-REx Mission: UArizona scientists get ready for return samples from asteroid Bennu
Scientists at the University of Arizona are counting down the days until a space probe carrying samples from an asteroid is back on Earth. FOX 10’s Steve Nielsen has more on the OSIRIS-REx mission, and why the samples are so important for researchers.
Of the 250 grams of samples, NASA officials will keep 75% of the samples in storage for future generations, whom might discover ways to test the rocks in ways we can’t even comprehend.
The secrets the samples hold could be endless.