According to new calculations, we may have a little less time to prepare for a star on course to kiss the edges of our Solar System.
Yep. Dwarf star Gliese 710, which we’ve known about for some time, could now arrive in 1.29 million years, instead of the previously calculated 1.36 million years.
Gliese 710 is what is classified as a rogue star — one that has gone roaming across the galaxy, free of the gravitational chains that normally hold stars in position.
The Fermi Paradox poses an age-old question: With light and radio waves skipping across the galaxy, why has there never been any convincing evidence of other life in the universe—or at least another sufficiently advanced civilization that uses radio? After all, evidence of intelligent life requires only that some species modulates a beacon (intentionally or unintentionally) in a fashion that is unlikely to be caused by natural phenomena.
The Fermi Paradox has always fascinated me, perhaps because SETI spokesperson, Carl Sagan was my astronomy professor at Cornell and—coincidentally—Sagan and Stephen Spielberg dedicated a SETI radio telescope at Oak Ridge Observatory around the time that I moved from Ithaca to New England. It’s a 5 minute drive from my new home. In effect, two public personalities followed me to Massachusetts.
What is SETI?
In November of 1984, SETI was chartered as a non-profit corporation with a single goal. In seeking to answer to the question “Are we alone?” it fuels the Drake equation by persuading radio telescopes to devote time to the search for extraterrestrial life and establishing an organized and systematic approach to partitioning, prioritizing, gathering and mining signal data.
Many of us associate astronomer Carl Sagan and Hollywood director, Stephen Spielberg, with SETI. They greased the path with high-profile PR that attracted interest, funding and radio-telescope partnerships. But, they were neither founders nor among the early staff. The founders, John Billingham and Barney Oliver assembled a powerhouse board of trustees, which included Frank Drake (Sagan’s boss at Cornell), Andrew Fraknol, Roger Heyns and William Welch. Among first hires were Jill Tarter, Charles Seeger, Ivan Linscott, Tom Pierson and Elyse Murray (now Elyse Pierson). Of course, Carl Sagan was advocated for the search for extraterrestrial intelligence, and he joined SETI as Trustee near the end of his life.
In The Birth of SETI, Tom Pierson reminisces about the early days of SETI. Also check out SETI pioneer, Jill Tarter, explaining how to write a message that will be understood by an alien civilization.
There is a lot of lore and love surrounding SETI, because its goal pulls directly on our need to understand our place in the cosmos. This week, SETI is going through a bit of transformation as it prepares for the next chapter in the search. So, where are the aliens? Are the funds and brainpower spent on peeping for aliens an investment in our own civilization, a form of entertainment, or a colossal waste?
This fascinating video offers 10 plausible solutions to Fermi Paradox. Fascinating, that is, if you can get past John Michael Godier’s dry, monotone narration. But. take my word for it. The concept and the content is exciting.
The US Department of Energy will fund the most sensitive search yet for theorized dark matter particles. It will sit over a mile underground, in a nickel mine near the Canadian city of Sudbury, according to a release.
The proposed Super Cryogenic Dark Matter Search at SNOLAB, or SuperCDMS SNOLAB, would be a detector held at near absolute zero that would be sensitive enough to detect the elusive dark matter with silicon and germanium atoms. It joins a long line of other experiments hunting for “weakly interacting massive particles,” or WIMPs, the most popular dark matter particle candidate.
Throughout the universe, there exist hints of unaccounted-for mass. Galaxies rotate too quickly at their edges, and the seemingly empty regions beside clusters of colliding galaxies warp the shape of space around them as if there were stuff there. The most popular solution to solve this mystery are WIMPs, particles that interact too weakly with regular matter to be detected by our telescopes or any other observing equipment.
A high-energy survey of the early Universe, an infrared observatory to study the formation of stars, planets and galaxies, and a Venus orbiter are to be considered for ESA’s fifth medium class mission in its Cosmic Vision science programme, with a planned launch date in 2032.
The three candidates, the Transient High Energy Sky and Early Universe Surveyor (Theseus), the SPace Infrared telescope for Cosmology and Astrophysics (Spica), and the EnVision mission to Venus were selected from 25 proposals put forward by the scientific community.
Theseus, Spica and EnVision will be studied in parallel and a final decision is expected in 2021.
The facility, which was originally used by the US military to spy on Soviet satellites during the Cold War, is undergoing a major overhaul to attract tourists and researchers alike. In search of inspiration, Snøhetta’s designers took astronomy classes and were captivated by the architecture of the galaxy.
“We learned about the eight shaped analemma diagram that the moon and the sun makes if you watch them from the same point over 365 days,” says Skaare. “We were especially inspired by the ‘ugly moons’ of Mars, with its funny shape,” she says referring Phobos and Deimos, the red-planet’s two lumpy satellites.
Mars’s lumpy-potato moons, in fact, inspired the shape of Solobservatoriet’s visitor cabins. Surrounding the planetarium are several imperfect-sphere rooms for stargazers who want to spend the an evening in the forest—perhaps to catch the spectacular Northern Lights. Designed to accommodate groups of two to 32, the cabins will be loosely scattered around the planetarium, by design.
It all started with a Big Bang. But then what?
Renowned theoretical astrophysicist Stephen Hawking had been trying to answer that and other questions about the universe right up until his death. But in his final paper, submitted just eight days before he died on March 14, at age 76, Hawking and co-author Thomas Hertog proposed that the universe is actually simpler than what’s been suggested in other theories.
Yes, they say, the massive explosion known as the Big Bang did create multiple universes — but not as many as the current theory predicts. The number of multiverses is finite, not infinite, according to them.
Ironically, my more popular posts are ones furthest from my passion and core interests. They are larks—never intended to go viral. This is about one of them…
Apart from family, I typically steer clear of religious topics. I identify with a mainstream religion, but it is completely beside the purpose of Lifeboat Foundation, and it is a personal affair.[1]
Yet, here we discuss a religious topic, after all. Let’s get started…
Question
Do atheists agree that the fact that we can’t understand
quantum physics is at least somewhat evidence of Allah?
An Objective Answer
Do you assert that a failure to understand something is evidence of God?
I don’t fully understand a triple-Lutz (ice skating) or the Jessica stitch (needlepoint)—and I certainly don’t get why an electric dryer leaves moisture on light weight linens, when a gas dryer gets them bone-dry before the plush towels.
Is my inability to solve these mysteries evidence of Allah (or Yahweh, haShem or Y’Shewa)? Of course, not! It has nothing to do with God or religion. The fact that I don’t quite grasp every complex task or unexplained science is not evidence of God, it is evidence of my own ignorance.
On the other hand, I am fortunate to understand quantum physics—both academically and from an innate perspective. That is, behavior of waves and matter on a subatomic scale make perfect sense to me.
You would be correct to point out that certain quantum behavior seems to violate common sense:
But these things only seem strange, because we do not experience them first hand given our size and our senses. As the math and the mechanisms are understood through research and experimentation, the behavior begins to fit within physical laws as we understand them. Then, we can extrapolate (predict) other behaviors.
For example, as we begin to understand quantum mechanics, we can design a computer, an encryption mechanism—and eventually a teleportation system—that exploits the physical properties and laws.
1 I do not appreciate the outreach of evangelism. In my opinion, religious discussion is best amongst a like-minded community.
An argument against Evangelism
This isn’t a rant against personal faith. It is a rant against the idea that you should ‘push’ your views on unrelated individuals, especially strangers—even if you believe that your view offers salvation.
Anyone who has lived in a home or apartment, dormed at a college or housed in the military has been approached by well-intentioned Mormons, Jehovah’s Witness, Baptists, Hari Krishna or other evangelicals. I hold nothing against such missionaries. They are marketing conscience and faith in what they see as an act of love. Unfortunately, society is worse off for this type of love. They are horribly misguided. They mean well and they may have the inside track on creation, but their understanding of equality and civil liberties is naïve.
Is this a position of Intolerance? — Quite the opposite!
Even in far off lands, instant communication, air travel and nuclear weapons render our fiefdoms meaningless beyond the realms of taxation, defense, and road repair. We live in a pluralistic melting pot. The shrinking planet demands that we coexist. I have always felt that the only thing of which we can be intolerant is intolerance itself.
So, why do I shun religious outreach? Because, arguing that your book is better than mine can only be won on faith—and faith is both personal and unprovable. Sure, tolerance is often built on religious ideals. To function as a society without killing each other, tolerance is a necessity. But, tolerance and humanity are also built into the Golden Rule and every democratic constitution. Any attempt to persuade others to adopt your core beliefs about origin, doctrine or blasphemy is pointless and an affront to everyone elses’ beliefs.
Whew! It took courage to get that off my chest. I hope that my friend, Hiawatha Bray forgives me.
What about the contradiction between science and religion?
I have never seen any contradiction. Only someone who believes that the Earth was created in the past 6,000 years ago sees a contradiction. That belief is as goofy as the sun orbitting the earth.
If there is a God, then I suppose it explains the energy and matter that surrounds us. And if this is the case, he followed up by proclaiming the finely tuned natural laws of physics and biochemistry, and set everything in motion. Oh rejoice in his splendor! Because, after billions of years, life arose—and we are the interim products of an expanding universe. It’s awe-inspiring, but it certainly presents no contradiction.
I don’t consider myself an atheist. And despite offering an agnostic explanation of the universe, my religion is my business and not yours. But, I certainly believe in science! I side with Bill Nye and the late Carl Sagan (he was my former professor). No one with a sense of their surroundings and an appreciation for facts can ignore that the Earth and the universe have existed for billions of years.
We may be the product of an intelligent God, but if we are, we will never know. We lack to tools to discern the question that predates all other questions. Pointing to ancient scripture is nonsense. The scripture was written by men, seeking to explain everything that they observed in their times. Yet, these men had fewer facts about the universe than we have now. The faith that most believers associate with scripture is based on respect for the practices and beliefs of their parents.
Moreover, the men who created these book (the bibles of any religion), also created God. Why? To deal with mortality, explain tragedy, control the masses—or perhaps as a mental exercise. It may even be a byproduct of what they were ingesting and smoking.
Posthumous journal.
Groundbreaking physicist Stephen Hawking left us one last shimmering piece of brilliance before he died: his final paper, detailing his last theory on the origin of the Universe, co-authored with Thomas Hertog from KU Leuven.
The paper, published today in the Journal of High Energy Physics, puts forward that the Universe is far less complex than current multiverse theories suggest.
It’s based around a concept called eternal inflation, first introduced in 1979 and published in 1981.
Looking deep into the observable Universe – and hence, back to the earliest periods of time – is an immensely fascinating thing. In so doing, astronomers are able to see the earliest galaxies in the Universe and learn more about how they evolved over time. From this, they are not only able to see how large-scale structures (like galaxies and galaxy clusters) formed, but also the role played by dark matter.
Most recently, an international team of scientists used the Atacama Large Millimeter-submillimeter Array (ALMA) to observe the Universe when it was just 1.4 billion years old. What they observed was a “protocluster”, a series of 14 galaxies located 12.4 billion light-years away that were about to merge. This would result in the formation of a massive galaxy cluster, one of the largest objects in the known Universe.
The study which described their findings, titled “A massive core for a cluster of galaxies at a redshift of 4.3”, recently appeared in the journal Nature. The study was led by Tim Miller – an astronomer from Dalhousie University, Halifax, and Yale University – and included members from NASA’s Jet Propulsion Laboratory, the European Southern Observatory (ESO), Canada’s National Research Council, the Harvard-Smithsonian Center for Astrophysics, the National Radio Astronomy Observatory, and multiple universities and research institutions.
