Space News & Blog Articles

We finally have the technological means to detect interstellar objects. We’ve detected two in the last few years, ‘Oumuamua and 2I/Borisov, and there are undoubtedly more out there. As such, there’s been a lot of interest in developing a mission that could visit one once we detect it. But what would such a mission look like? Now, a draft paper from a team of primarily American scientists has taken a stab at answering that question and moved us one step closer to launching such a mission.

There’s a new planet hunter in town, and it’s got its sights set on nearby Earth-sized planets in the galactic neighborhood.

Nearly 37 years ago the world watched in stunned horror as an explosion destroyed the space shuttle Challenger. The accident occurred 73 seconds after liftoff and killed seven astronauts. Memories of shuttle pieces falling into the sea remain with everyone who witnessed the catastrophe.

Here’s a dramatic and spectacular new view of the Cone Nebula, as seen by the Very Large Telescope (VLT). This nebula is part of a distant star-forming region called NGC 2264, which about 2,500 light-years away. Its pillar-like appearance is a perfect example of the shapes that can develop in giant clouds of cold molecular gas and dust, known for creating new stars.

Engineers with the James Webb Space Telescope have figured out a way to work around a friction issue that arose with the telescopes’ Mid-Infrared Instrument (MIRI). The team is now planning to resume observations with the instrument’s medium resolution spectrometry (MRS) mode, which has not been used since August.

Today, the number of confirmed exoplanets stands at 5,197 in 3,888 planetary systems, with another 8,992 candidates awaiting confirmation. The majority have been particularly massive planets, ranging from Jupiter and Neptune-sized gas giants, which have radii about 2.5 times that of Earth. Another statistically significant population has been rocky planets that measure about 1.4 Earth radii (aka. “Super-Earths”). This presents a mystery to astronomers, especially where the exoplanets discovered by the venerable Kepler Space Telescope are concerned.

Something huge lurks in the shadows of the Universe. Known as the Great Attractor, it is causing the Milky Way and all the surrounding galaxies to rush towards it. We would normally have a better understanding of this situation, except for the fact that the Great Attractor happens to lie in the direction behind the galactic bulge, which makes it difficult for us to observe. A team of astronomers have performed a new infrared survey of the region behind the bulge, and they have found yet another large galaxy cluster. Their work is helping to paint a more complete portrait of the environment of the Great Attractor.

We’ve seen some great images from the total lunar eclipse this week. But this one might top them all. Astrophotographer Andrew McCarthy created this incredible composite image, showing the Moon in various stages of the eclipse throughout the night.

As cosmic events go, supernova explosions epitomize the saying, “Live fast, die young, and leave a good-looking corpse.” They’re the deaths of stars so massive that they tear through their fuel in a short time. Then, they explode and create gorgeous scenes of stellar destruction. These seminal events enrich the universe with chemical elements for new generations of stars and planets.

Creating astronomical images is no easy task, and astronomers with the European Southern Observatory have provided a handy guide to show you how astronomy goes from raw data to an image that you can splash on your desktop.

650 million years ago, Earth was completely or almost completely frozen, according to the Snowball Earth Hypothesis. As the atmosphere changed and Earth warmed up, it heralded the beginning of the Ediacaran Period. The Ediacaran Period marks the first time multicellular life was widespread on the planet. It predates the more well-known Cambrian Period, when more complex life emerged, diversified, and flourished.

Did the skies above you cooperate this morning to see the total lunar eclipse? Mine did not, and Fraser reports he was clouded out as well. But thankfully, we can live vicariously through all of the wonderful friends and astrophotographers who have shared their jaw-dropping photos of the blood Moon, Beaver Moon total lunar eclipse. This is the last total lunar eclipse until March 14, 2025.

On the afternoon of Monday, October 31st, 2022 (Halloween!), China launched the Mengtian laboratory cabin module into space, where it will join the Tiangong modular space station. This module, whose name translates to “Dreaming of the Heavens,” is the second laboratory and final addition to Tiangong (“Palace in the Sky”). This successful launch places China one step closer to completing its first long-term space station, roughly one-fifth the mass of the International Space Station (ISS) and comparable in size to Russia’s decommissioned Mir space station.

The fate of the Sun is sealed. It was sealed by gravity in the earliest days of its formation. In several billion years the Sun will swell to a red giant, cast off much of its thin outer layers, then collapse to become a white dwarf. The white dwarfs we see in the nearby galaxy tell us of our Sun’s future. Its core will collapse to about the size of Earth, and then it will gradually cool as it fades into the dark. It’s a tale we’ve long known, but astronomers continue to learn learning interesting details, particularly regarding what might be the fate of the Sun’s planets.

Are miniature probes the future of deep space exploration?

When we think about finding life beyond Earth, especially on exoplanets, we immediately want to search for the next Earth, or Earth 2.0. We want an exoplanet that orbits a star firmly in its habitable zone (HZ) with vast oceans of liquid water, and plenty of land to go around. An exoplanet like that most certainly has life, right? But what if we’re looking in the wrong places? What if we find life on exoplanets that don’t possess the aforementioned characteristics, i.e., Earth 2.0?

The Sun is active, dynamic, and occasionally violent. Unfortunately our view of the Sun is limited to a small handful of orbiting satellites and ground-based observatories. The Solar Ring is new proposal that hopes to radically change that picture by launching a trio of satellites around the Sun to give continuous, 360° panoramic images in real time. The observatory could revolutionize our understanding of our parent star.

It’s almost time to say goodbye to another Martian friend. Plenty of missions to the Red Planet have gone silent for the last time, some after many successful years of data collection and some after a brief free-fall as a fireball. We will soon add another Martian explorer to that ever-growing list – InSight might have sent its final image home.

Sometimes it’s tempting to imagine a supernatural hand behind the arrangement of celestial bodies. But the Universe is big, huge even, and nature’s flow presents many fascinations.

We reported a few weeks ago about an Earth gravity assist flyby for the Lucy mission. Around the same as the spacecraft took a dip closer to Earth than the ISS, it took some fantastic pictures of our nearest neighbor – the Moon. After some processing, those pictures are available for inspection or gawking, as the case may be.

When stars reach the end of their life cycle, they experience gravitational collapse at their centers and explode in a fiery burst (a supernova). This causes them to shed their outer layers and sends an intense burst of light and high-energy short-wavelength radiation (like X-rays and gamma-rays) out in all directions. This process also creates cosmic rays, which consist of protons and atomic nuclei that are accelerated to close to the speed of light. And on rare occasions, supernovae can also create “light echoes,” rings of light that spread out from the site of the original explosion.