One of the James Webb Space Telescope’s science goals is to help cosmologists understand how the first galaxies and galaxy clusters formed in the early Universe. New images from the telescope show just that. Astronomers say the seven galaxies shown in this new JWST images are the earliest yet to be spectroscopically confirmed as part of a developing galaxy cluster.
We’ve seen our share of photos of Mars from orbit and the surface, but what about its moons? The United Arab Emirates Hope orbital mission to Mars sent home new beautiful high-resolution images of the Red Planet’s moon Deimos when it flew within 100 km of the moon last month. This is the closest any spacecraft has been to Deimos in almost 50 years.
NASA’s TESS (Transiting Exoplanet Survey Satellite) recently reached its fifth anniversary of service to humanity as it continues to tirelessly scan the heavens for worlds beyond. Dubbed as an all-sky mission, TESS was launched on April 18, 2018, aboard a SpaceX Falcon rocket. During its five years in space, TESS’s four 24 degrees x 24 degrees field-of-view CCD cameras have successfully mapped greater than 93% of the cosmos.
A lunar lander built and operated by ispace, a Japanese startup, descended to the surface of the moon today after a months-long journey — but went out of contact and was presumed lost.
If we want to know what it’ll look like in about 4.5 billion years when our galaxy merges with Andromeda, we might take a look at ARP 220. ARP 220 is a pair of galaxies that are in the process of merging. The merging galaxies emit brilliant infrared light, and the James Webb Space Telescope captured that light in a vivid portrait.
NASA has a long history of crowdsourcing solutions, seeking input from the public, entrepreneurs, and citizen scientists. Currently, the agency is tasked with preparing for the long-awaited return to the Moon (the Artemis Program) and addressing the growing problem of Climate Change. The former entails all manner of requirements, from launch vehicles and human-rated spacecraft to logistical concerns and payload services. The latter calls for advances in climate science, Earth observation, and high-quality data collection.
In the hunt for habitable worlds around other stars, planetary atmospheres provide fertile places to look. But, as a group of scientists at the Max-Planck Institute for Solar System Studies in Germany found, maybe astronomers should focus on a star’s metallicity, too. That’s because there seems to be a direct link between their metallicity, how much UV radiation they give off, and the atmospheres of rocky planets orbiting them. It turns out that metal-poor stars provide better conditions for life on their planets than metal-rich ones do.
The large impact craters dotting our planet are powerful reminders that asteroids and comets strike the Earth from time to time. As often said, it’s not a question of “if”; it’s a matter of “when” our planet will face an impending strike from space. But an impact is one existential threat humanity is finally starting to take seriously and wrap its head around.
The Hakuto-R lunar lander, currently in orbit around the Moon, just captured a beautiful “Earthrise”-like image, and one with an interesting side note. The Mission 1 lander, from the Tokyo-based commercial company ispace, took the image during the time of the April 20 solar eclipse, where totality was visible in Australia; and so the photo includes a perfect view of the shadow of the Moon passing above the Land Down Under.
NASA recently announced the astronauts that will make up the Artemis II crew. This mission will see the four-person crew conduct a circumlunar flight, similar to what the uncrewed Artemis I mission performed, and return to Earth. This mission will pave the way for the long-awaited return to the Moon in 2025, where four astronauts will fly to the Moon, and two (“the first woman and first person of color“) will land on the surface using the Starship HLS. These missions are part of NASA’s plan to establish a program of “sustained lunar exploration and development.”
Our galaxy’s largest nearby companion is the Large Magellanic Cloud (LMC), a dwarf galaxy visible to the naked eye in the Southern Hemisphere. In recent years, new theoretical research and better observational capabilities have taught astronomers a great deal about our (not-so-little) neighbour. It’s becoming increasingly clear that the LMC is helping shape the Milky Way’s evolution.
The head of the Pentagon office that is reviewing reported unidentified anomalous phenomena (UAP – commonly known as UFOs, unidentified flying objects) told the US Congress this week that his office is now reviewing more than 650 incidents, but so far, none exhibited anything that was evidence of extraterrestrial activity or defied the known laws of physics.
The European Space Agency’s (ESA) recently launched Jupiter Icy Moons Explorer (JUICE) mission and NASA’s upcoming Europa Clipper mission could allow scientists to image landslides on the icy moons of Europa and Ganymede due to potential moonquakes on these small worlds. This comes after a recent study examined fault scarps on Europa and Ganymede orbiting Jupiter and Enceladus and Dione orbiting Saturn with the goal of drawing a connection between tectonic activity (quakes) and observed mass wasting (landslides) on these surfaces. The researchers “consider whether such smooth material can be generated by mass wasting triggered from local seismic shaking”, according to the study.
Earth is a favorite target for the cameras and astronauts aboard the International Space Station (ISS). This week, NASA shared an amazing picture of the Himalayan mountain range as seen from space. This jagged set of mountains stretches out across Asia above the Indian subcontinent and is home to Mount Everest, the tallest mountain on Earth. It’s centered in the image.
The Ingenuity chopper on Mars is the little helicopter that just keeps on going. It’s doing that, even as it takes on flights over some pretty tough ground on the Red Planet. On April 13, Ingenuity made its 50th flight of the mission, 45 more than it was originally scheduled to do.
It’s the end of an era, at least for the Perseverance rover on Mars, who has lost a long-time friend.
On April 10th, ESA’s Solar Orbiter made its closest flyby of the Sun, coming to within just 29% of the distance from the Earth to the Sun. From this vantage point, the spacecraft is performing close-up studies of our Sun and inner heliosphere. This is basically uncharted territory, as we’ve never had a spacecraft this close to the Sun.
The ESA’s Gaia mission is our most accurate star-measuring spacecraft. It’s busy mapping the positions and radial velocities of one billion stars in the Milky Way. The mission’s goal is to create a representative map of the galaxy’s stellar population with unprecedented accuracy. The mission has released 3 sets of data since its inception, leading to many discoveries.
There’s a wobbly X-ray-bright binary object in our galaxy called Hercules X-1 that’s blowing a mighty wind off to surrounding space. The system consists of a neutron star paired with a sun-like star. The neutron star is drawing material away from its companion. Its resulting accretion spins rapidly, and that whips up powerful winds. They affect the region of nearby space. That’s eerily similar to how a quasar’s central black hole sends out winds to influence its entire host galaxy.
Fast Radio Bursts (FRBs) are cosmic mysteries that are slowly but surely revealing their secrets. These bright flashes of light are visible in the radio wave part of the spectrum and usually last only a few milliseconds before fading away forever. They come from random locations across the Universe and are so powerful that we can see them emanating from billions of light-years away.
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