Our planet is part of the larger structure of the Solar System, shaped and made stable by the force of gravity. Our Solar System is gravitationally bound to the Milky Way galaxy, along with hundreds of millions of other solar systems. And our galaxy is also part of a larger structure, where not only gravity, but the expansion of the Universe, shapes and molds that structure. For regular Universe Today readers, none of that is news.
Now a new study sheds some light on a curious part of our cosmic neighbourhood, where there is basically nothing: The Local Void.
Continue reading “Meet Our Neighbour, The Local Void. Gaze Into It, Puny Humans.”
Welcome back to Messier Monday! Today, we continue in our tribute to our dear friend, Tammy Plotner, by looking at the approaching spiral galaxy known as Messier 90!
During the 18th century, famed French astronomer Charles Messier noticed the presence of several “nebulous objects” while surveying the night sky. Originally mistaking these objects for comets, he began to catalog them so that others would not make the same mistake. Today, the resulting list (known as the Messier Catalog) includes over 100 objects and is one of the most influential catalogs of Deep Space Objects.
One of these objects is the intermediate spiral galaxy known as Messier 90, which is located about 60 million light-years away in the constellation Virgo – making it part of the Virgo Cluster. Unlike most galaxies in the local group, Messier 90 is one of the few that have been found to be slowly moving closer the Milky Way (the others being the Andromeda and the Triangulum galaxy).
Continue reading “Messier 90 – the NGC 4569 Spiral Galaxy”
Welcome to the 621st Carnival of Space! The Carnival is a community of space science and astronomy writers and bloggers, who submit their best work each week for your benefit. We have a fantastic roundup today so now, on to this week’s worth of stories!
Continue reading “Carnival of Space #621”
The year of 2019 has not been very kind to SpaceX so far. Back in April, the company lost one of its new Crew Dragon capsules when an explosion occurred during a static firing test of their In-Flight Abort test vehicle. Earlier this week, the company revealed that they had determined the cause of the explosion, saying that it was due to a nitrogen tetroxide leak that occurred just prior to the final test.
And now, just a few days later, another accident has occurred, this time involving the Starhopper test vehicle. Once again, a fire occurred shortly after the vehicle conducted an engine test; fortunately, it resulted in no injuries. However, the Starhopper appears to have come through the fire completely unscathed, though it might cause a slight delay with the vehicle’s scheduled hop tests.
Continue reading “Starship Prototype Catches Fire After a Recent Test, But Appears Undamaged”
After months of discussion, the space agencies behind the Lunar Gateway have decided how the space station will orbit the Moon. NASA and the ESA are developing the Lunar Gateway jointly, and the orbital path that it will follow around the Moon is a key part of mission design. It’ll affect all the vital aspects of the mission, including how spacecraft will rendezvous and land at the station.
Continue reading “The Lunar Gateway Will be in a “Near-Rectilinear Halo Orbit””
Some lakes on Titan have ring-like shapes around them, and scientists are trying to find out how they formed. Understanding how they formed may tell us something about how the entire region they’re in, including the lakes, formed. The ring-shaped features are found around pools and lakes at Titan’s polar regions.
Continue reading “There are Ring-Like Formations Around the Lakes on Titan”
LightSail 2, the brainchild of The Planetary Society, has gifted us two new gorgeous images of Earth. The small spacecraft is currently in orbit at about 720 km, and the LightSail 2 mission team is putting it through its paces in preparation for solar sail deployment sometime on or after Sunday, July 21st.
Continue reading “LightSail 2 is Sending Home New Pictures of Earth”
Dick Battin stood on his driveway
in the New England frosty pre-dawn back in October 1957, straining his eyes to
see Sputnik fly overhead. It was amazing. Watching that little point of light
scoot silently across the sky made Battin’s heart pound. A human-made hunk of
metal was actually orbiting Earth!
Walking back to his house, Battin’s mind raced. Oh, how he wished he’d never left the MIT Instrumentation Laboratory a year and a half ago. He’d regretted it since the day he decided to move on to what he thought were greener pastures. But now, his regret became a steadfast resolve to somehow get back to the Lab again, because he knew – he was absolutely certain without a doubt – that Doc Draper would be getting his hand in this new venture of space exploration. And Battin wanted in, too.
Continue reading “The Story of the Apollo Guidance Computer, Part 1”
Why report on an asteroid that has no chance of hitting Earth? Because this asteroid, known as 2006 QV89, has a history. A history of being kind of hard to track.
Continue reading “Asteroid 2006 QV89 Now Has a 0% Chance of Hitting Earth in September”
The idea of somehow terra-forming Mars to make it more habitable is a visionary, sci-fi dream. But though global terra-forming of Mars is out of reach, the idea persists. But now, a material called silica aerogel might make make the whole idea of terra-forming Mars slightly less impossible.
Continue reading “Blankets of Silica Aerogel Could Make Parts of Mars Habitable”