Image (Credit): “Cape Byron Lighthouse Moonrise” by Kevin Hennessey. (Australia Geographic)
The winners of the Australia Geographic astronomy photography contest have been named, and the photo above is one that won honorable mention in the Nightscapes Category, “Cape Byron Lighthouse Moonrise” by Kevin Hennessey.
Here is a little more about the impressive image:
The full moon rises behind the Cape Byron Lighthouse at the most easterly point of mainland Australia, silhouetting a group of spectators gathered at its base. Taken through a high-powered telescope from a distance of 5.1km away makes the moon appear extraordinarily large in this photo. The shooting location had to be accurate to within a couple of meters, determined with the help of the “Photopills” iPhone app, Google Earth and an aircraft-grade GPS.
Image (Credit): An imagined Martian settlement. (NASA)
Astronomy magazine has a good article titled “Predictions for the Next 50 Years of Astronomy.” Five astronomers provide their ideas about what we might experience in the field of astronomy in the 2070s.
For instance, S. Alan Stern, a planetary scientist and member of the U.S. National Science Board, had this prediction:
By the ’70s, I expect we’ll have human exploration taking place on multiple worlds in the solar system, with Antarctic-like, semipermanent bases scattered around the globes of at least Luna and Mars. I also expect we may by then have much larger and more powerful launch vehicles, even fusion-based or high-power electric propulsion, making trip times an order of magnitude shorter than today. Just think: Mars in a few weeks, Pluto and the Kuiper Belt in a year!
I just want to see the Moon landing get underway before any predictions about the Kuiper Belt, but it is all exciting and in many ways unknowable given what has happened in the last 50 years. For instance, how many people 50 years ago believed that we would have a catalog of thousands of exoplanets, many similar to Earth?
Of course, predictions are tough. Here is what some scientists were saying in the 1970s about the fate of our little planet, as reported by the American Enterprise Institute:
{Paul] Ehrlich sketched out his most alarmist scenario for the 1970 Earth Day issue of The Progressive, assuring readers that between 1980 and 1989, some 4 billion people, including 65 million Americans, would perish in the “Great Die-Off.”
Harrison Brown, a scientist at the National Academy of Sciences, published a chart in Scientific American that looked at metal reserves and estimated the humanity would totally run out of copper shortly after 2000. Lead, zinc, tin, gold, and silver would be gone before 1990.
We have our issues today, but I am very happy that these earlier scientists did not have the gift of prophesy.
“We really are trying to get in the details of that schedule because when we come up with a date, December of 2025, or whatever that date might be, we want to have confidence for our teams, that we all have a realistic path to get there.”
-Statement by Jim Free, NASA associate administrator of Exploration Systems Development, regarding the launch date of the Artemis III mission, as reported in Florida Today. The story highlights the potential delays related to SpaceX’s Starship and Axiom’s space suits.
Image (Credit): The Soyuz rocket carrying the Luna-25 lander launched from Russia’s Vostochny Cosmodrome. (Agence France-Presse)
Russia’s Luna-25 mission has begun with the successful lift-off of the Soyuz 2.1 rocket yesterday (2:11 a.m. on Friday Moscow time or Thursday at 7:10 pm EDT). After its planned arrival on August 21, Luna-25 will be searching for water at the lunar south pole.
The mission was off and then on again over the years as Russia became super cautious with its return to the Moon. The country’s invasion of Ukraine led to the loss of European partners as well as sanction-related shortages, so Russia has no one to blame but itself. Science was pushed aside as it bullied its neighbors.
One can only wonder whether Russia knows how to start anew. Even the name of the mission, Luna, is a Cold War leftover. It would be the same as NASA restarting the Apollo program rather than the more comprehensive and Mars-focused Artemis mission.
There is plenty of room on the Moon for multiple national missions. Moreover, similar to the International Space Station, it would be beneficial for US and Russian scientists to share data and ideas. It would just be easier if Russian rockets were only focused on the Moon rather than Ukrainian cities.
The length of Mars’ day is shortening by three-quarters of a millisecond each year as the planet’s rotation spins up, according to new results from NASA’s InSight lander…Planetary scientists are not entirely sure why this is happening, but it is likely related to the redistribution of Mars’ mass, which can have an effect on the planet’s rotation like an ice skater pulling in their arms to spin faster. This redistribution might be caused by the accumulation of ice on Mars’ polar caps, experts believe, or by the surface itself slowly rebounding from residing under the weight of immense glaciers that existed at equatorial latitudes during the world’s most recent ice ages, which ended about 400,000 years ago.
NASA has left the door open for changing the scope of Artemis 3, currently set to be the first crewed lunar landing of the program, if key elements suffer major delays. Speaking at an Aug. 8 briefing at the Kennedy Space Center, Jim Free, NASA associate administrator for exploration systems development, said the Artemis 3 mission still has a formal launch date of December 2025 but that he was monitoring potential delays in hardware needed for the mission. “We may end up flying a different mission if that’s the case,” he said. “If we have these big slips out, we’ve looked at if can we do other missions.” Artemis 3 could also change based on the outcome of Artemis 2, he added.
One of the oldest known objects in the universe is wandering around the Milky Way. Star cluster M92, a densely packed ball of stars roughly 27,000 light-years from Earth, is about 13.8 billion years old, researchers report in a paper submitted June 3 to arXiv.org. The newly refined age estimate makes this clump of stars nearly the same age as the universe. Refining the ages of clusters like M92 can help put limits on the age of the universe itself. It can also help solve cosmic conundrums about how the universe evolved.
Our Awesome Universe 