Space News & Blog Articles

When the DART spacecraft slammed into asteroid Dimorphos on September 26, 2022, telescopes worldwide (and in space) were watching as it happened. But others continued watching for numerous days afterward to observe the cloud of debris. DART’s (Double Asteroid Redirection Test) intentional impact was not only a test of planetary defense against an asteroid hitting our planet, but it also allowed astronomers the chance to study Dimorphos, a tiny moon or companion to asteroid Didymos.

Alpha Centauri is our closest stellar neighbor, a binary star system located just 4.376 light-years away. Despite its proximity, repeated astronomical surveys have failed to find hard evidence of extrasolar planets in this system. Part of the problem is that the system consists of two stars orbiting each other, which makes detecting exoplanets through the two most popular methods very challenging. In 2019, Breakthrough Initiatives announced they were backing a new project to find exoplanets next door – the Telescope for Orbit Locus Interferometric Monitoring of our Astronomical Neighbourhood (TOLIMAN, after the star’s ancient name in Arabic).

Our galaxy is still actively making stars. We’ve known that for a while, but sometimes it’s hard to understand the true scale in astronomical terms. A team from Japan is trying to help with that by using a novel machine-learning technique to identify soon-to-be star-forming regions spread throughout the Milky Way. They found 140,000 of them.

The highly-anticipated Dragonfly robotic rotocraft mission to Saturn’s moon Titan is scheduled to launch in 2027. When it arrives in the mid-2030s, it will hover and zoom around in the thick atmosphere of Titan, sampling the air and imaging the landscape.  What could be more exciting than that!?

One of the most interesting questions we can ask is, “How did life form?”. To answer it, scientists go back to look at the basic chemical building blocks of life. Those are water, carbon-based organic molecules, silicates, and others. The James Webb Space Telescope offered a peek at the gases, ice particles, and dust surrounding a newborn star and found organic molecules exist there.

The moons of our Solar System have garnered quite a lot of attention in the last few years, especially pertaining to astrobiology and the search for life beyond Earth. From the Galilean moons of Jupiter to the geysers of Enceladus to the methane lakes on Titan, these small worlds continue to humble us with both their awe and mystery. But do the very same scientists who study these mysterious and intriguing worlds have their own favorite moons? As it turns out, seven such planetary geologists were kind enough to share their favorite Solar System moons with Universe Today!

New results presented at the 54th Lunar and Planetary Science Conference could change our approach to Mars exploration. Scientists studying the surface of Mars discovered a relict glacier near the planet’s equator. The relict glacier could signal the presence of buried water ice at the planet’s mid-latitudes.

Fans of Star Trek were over the Moon when, in 2018, astronomers with the Dharma Planet Survey (DPS) announced the possible detection of 40 Eridani b, an extrasolar planet in the star system 40 Eridani. Located just 16.3 light-years away, this triple-star system happens to be where the planet Vulcan was located in the popular franchise. Based on radial velocity measurements of the system’s primary star (40 Eridani A), the discovery team estimated that “Vulcan” was a rocky planet several times the mass of Earth (a Super-Earth) with an orbital period of 42 days or so.

Where on the Moon will the first crewed Artemis mission Land? While NASA is still deliberating on the exact location, they’ve chosen several candidate landing sites near the lunar south pole. This new image captured by the Lunar Reconnaissance Orbiter reveals what the astronauts might see out the window as they approach their destination.

Venus has active volcanoes, we get a glimpse of NASA’s new lunar exploration suits, and scientists build a completely flat telescope lens.

Sunsets provide some of the most beautiful natural imagery anywhere on Earth. People flock from all over to see sunsets at specific places at specific times, such as when they perfectly align down a street in Manhattan. But sunsets on other planets wouldn’t be nearly as spectacular.

The people of Chelyabinsk in Russia got the surprise of their lives on the morning of February 15, 2013. That’s when a small asteroid exploded overhead. The resulting shockwave damaged buildings, injured people, and sent a sonic boom thundering across the region.

We’ve come a long way since gamma rays were discovered.

Creating rocky planets is a messy, dangerous, hot business. Planetesimals accrete together, which creates heat and pressure on the newborn world. The nearby adolescent star bombards them with intense radiation. That likely “bakes off” any surface oceans, lakes, or rivers, which is a disaster if you’re looking for places where life might arise or exist. That’s because life needs water and planets around these stars are among the most likely to harbor life. But, that doesn’t look too hopeful if the radiation steams the water away.

Interest in the exploration of Venus has kicked up a notch lately, especially after a contested recent discovery of phosphine, a potential biosignature, in the planet’s atmosphere. Plenty of missions to Venus have been proposed, and NASA and ESA have recently funded several. However, they are mainly orbiters, trying to peer into the planet’s interior from above. But they are challenged by having to see through dozens of kilometers of an atmosphere made up of sulfuric acid. 

The ExoMars Rover mission is back on track for its mission to Mars, but Russia won’t be a part of it this time. Following Russia’s disastrous invasion of neighbouring Ukraine in February 2022, the ESA suspended the ExoMars program.

One of the most exciting aspects of the current era of space exploration (Space Age 2.0) is how time-honored ideas are finally being realized. Some more well-known examples include retrievable and reusable rockets, retrieval at sea, mid-air retrieval, single-stage-to-orbit (SSTO) rockets, and kinetic launch systems. In addition, there are also efforts to develop propulsion systems that do not rely on conventional propellants. This technology offers many advantages, including lower mass and improved energy efficiency, ultimately leading to lower costs.

In some of the best footage yet, the Perseverance rover has taken new video of the Ingenuity helicopter taking off and flying over Mars’ surface.

Using archival radar images taken in the 1990s by NASA’s Magellan spacecraft, scientists have found evidence of recent active volcanism on Venus.  The images revealed a volcanic vent that changed shape and increased significantly in size over an eight-month period.

Asteroid Didymos is spitting rocks out into space.

Think there’s nothing to learn through suborbital flight and that space science is only done in orbit? Think again. Recently, a group of school students in Canada asked the question: do Epi-Pens work in space? These are epinephrine-loaded injectors used to help people with allergies survive a severe attack. To get an answer, the class at St Brother André Elementary School worked with NASA, the University of Ottawa, and the non-profit Cubes in Space program to launch some Epi-Pens on suborbital flights aboard a rocket and a high-altitude balloon. The result? Post-flight analysis showed that the pens lost their efficacy in space. It was a surprise to NASA as well as to the students.