Feeds:
Posts
Comments

Posts Tagged ‘astronomer’

Photo: California Institute of Technology (Caltech).
Matteo Paz with Caltech President Thomas F. Rosenbaum after winning the Regeneron Science Talent Search award. 

Today I’m thinking about competitions, particularly academic competitions and what they can do for young people. Did you ever enter one? Perhaps encouraged by a teacher?

I’ve known people who not only won money but launched a career that way, but if a teacher ever asked me to try, I shied away. Scared? Lazy? It takes a certain kind of optimism, perhaps. Optimism and the stamina to bounce back if hopes repeatedly fall apart. Do share your own experience with competition. How much does the money matter? How much did a mentor matter?

Meanwhile, here’s a great story about a young science and computer whiz from California.

Margherita Bassi writes at the Smithsonian, “In a leap forward for astronomy, a researcher has developed an artificial intelligence algorithm and discovered more than one million objects in space by parsing through understudied data from a NASA telescope.

“The breakthrough is detailed in a study published in November in The Astronomical Journal. What the study doesn’t detail, however, is that the paper’s sole author is 18 years old.

Matteo Paz from Pasadena, California, recently won the first place prize of $250,000 in the 2025 Regeneron Science Talent Search for combining machine learning with astronomy. Self-described as the nation’s ‘oldest and most prestigious science and math competition for high school seniors,’ the contest recognized Paz for developing his A.I. algorithm. The young scientist’s tool processed 200 billion data entries from NASA’s now-retired Near-Earth Object Wide-field Infrared Survey Explorer (NEOWISE) telescope. His model revealed 1.5 million previously unknown potential celestial bodies.

“ ‘I was just happy to have had the privilege. Not only placing in the top ten, but winning first place, came as a visceral surprise,’ the teenager tells Forbes’ Kevin Anderton. ‘It still hasn’t fully sunk in.’

“Paz’s interest in astronomy turned into real research when he participated in the Planet Finder Academy at the California Institute of Technology (Caltech) in summer 2022. There, he studied astronomy and computer science under the guidance of his mentor, Davy Kirkpatrick, an astronomer and senior scientist at the university’s Infrared Processing and Analysis Center (IPAC).

“Kirkpatrick had been working with data from the NEOWISE infrared telescope, which NASA launched in 2009 with the aim of searching for near-Earth asteroids and comets. The telescope’s survey, however, also collected data on the shifting heat of variable objects: rare phenomena that emit flashing, changing or otherwise dynamic light, such as exploding stars. It was Kirkpatrick’s idea to look for these elusive objects in NEOWISE’s understudied data. …

“Paz, however, had no intention of doing it by hand. Instead, he worked on an A.I. model that sorted through the raw data in search of tiny changes in infrared radiation, which could indicate the presence of variable objects. Paz and Kirkpatrick continued working together after the summer to perfect the model, which ultimately flagged 1.5 million potential new objects, including supernovas and black holes.

“ ‘Prior to Matteo’s work, no one had tried to use the entire (200-billion-row) table to identify and classify all of the significant variability that was there,’ Kirkpatrick tells Business Insider’s Morgan McFall-Johnsen in an email. He adds that Caltech researchers are already making use of Paz’s catalog of potential variable objects, called VarWISE, to study binary star systems.

“The variable candidates that he’s uncovered will be widely studied,’ says Amy Mainzer, NEOWISE’s principal investigator for NASA, to Business Insider.

“As for the A.I. model, Paz explains that it might be applicable to ‘anything else that comes in a temporal format,’ such as stock market chart analysis and atmospheric effects like pollution, according to the statement. It’s no surprise the teenager is interested in the climate—as fires burned in L.A. earlier this year, the Eaton Fire forced him and his family to evacuate their home, Forbes reports.

“Other teenage scientists recognized by the contest studied mosquito control, drug-resistant fungus, the human genome and mathematics.”

More at the Smithsonian, here.

Read Full Post »

Photo: Thibaut Roger/NCCR PlanetS/PA.
The planets surrounding the HD110076 star orbit it in neat ratios depending on their closeness to it. 

Where I went to high school, we memorized Bible verses every week. I always liked the words from this time of year: “The star, which they saw in the east, went before them till it came and stood over where the young child was.” So I’m going to say that today’s post on stars is a seasonal post.

At the Guardian, Nicola Davis delves into new star research from the journal Nature.

“Six planets that orbit their star in a coordinated dance have been discovered by scientists, who say the finding could help shed light on why planets in our own solar system move to their own beat.

“The newly discovered planets orbit a star that sits about 100 light years away in the constellation Coma Berenices, with a mass about 20% smaller than our Sun.

“Not only is their makeup different from planets within our solar system, but their movements appear to be tied together: the team said the time it takes one planet to travel around the star was related to that of the next planet by a neat ratio.

“ ‘This system has this very delicate resonant configuration,’ [said] Dr Rafael Luque, co-author of the research from the University of Chicago. The team said such ‘resonance’ should be common within planetary systems, arising from gravitational interactions between planets that begin as they form.

Astronomer Hugh Osborn, a co-author from the University of Bern, converted the resonance among these planets’ orbits into music.

“However, in reality only about 1% of observed planetary systems show resonance – and even fewer involve as many as six planets moving in a coordinated fashion. …

“The team added that the newly discovered planets sit close to their star, with temperatures of 170-650C, and have diameters two to three times that of Earth but smaller than Neptune, making them ‘sub-Neptunes.’ The masses of the planets and their densities were elucidated using ground-based measurements. …

“ ‘Even though we have found so many planets like these ones outside of the solar system, we do not know much about them,’ said Luque.

“Luque added that with six sub-Neptunes of varying sizes, temperatures and masses around the same, bright star, astronomers now had a way to explore how and why such planets differed. …

“Data from [Nasa’s Transiting Exoplanet Survey Satellite] has revealed that one planet had a nine-day orbit while another took 13 days to orbit the star. Subsequent data from the European Space Agency’s Characterizing Exoplanet Satellite (Cheops), suggested yet another planet took 20.5 days to orbit the star.

“The team realized these orbits formed neat ratios: the first planet from the star makes three orbits in the time it takes the second planet to make two orbits, and the second planet makes three orbits in the time it takes the third planet to make two orbits.

“The discovery led the team to propose that the orbits of the other three planets in the system also would be related by simple ratios. Further observations confirmed they were right.”

More at the Guardian, here. You should know that Dr Hugh Osborn, a co-author from the University of Bern, converted the resonance among these planets’ orbits into music. Listen to that music in an audio clip of about 2-1/2 minutes at Public Radio International’s The World, here. Very special.

Read Full Post »

Today I read an article at Miller-McCune on an astronomer and an economist who want to dump the calendar we all use (Gregorian) in favor of something completely new.

It reminded me of my late friend Doc Howe, who was commissioner of education under Lyndon Johnson and who often spoke of an idea for a calendar that he learned about in his Ford Foundation days. (It might have been the World Calendar seen here, but I’m not sure. Like invented languages, new calendar systems keep popping up.)

Writes Emily Badger at Miller-McCune, “The ever-changing calendar, with its periodic leap years and mouthful of monthly mnemonic devices, has irked timekeepers almost since the system was introduced in the 1500s.

“ ‘It’s a very accurate calendar,’ says Richard Conn Henry, a professor of astronomy at Johns Hopkins University. …

“That said, he wants to get rid of the thing. He and Johns Hopkins economist Steve Hanke are now lobbying to replace it with their invention, the Hanke-Henry Permanent Calendar. In the long tradition of calendar reformers, they believe they’ve settled on the elusive solution to the Gregorian calendar’s floating days of the week: one calendar that remains constant every year, where New Year’s Day falls without fail on, say, Sunday every single time.

“The big advantage to such a system is that nobody — businesses, the NFL, universities, beleaguered governments — would have to go through the exercise every year of rewriting holiday schedules, course calendars or sports seasons.”

Henry and Hanke believe it preferable to insert “an entire extra week onto the end of December every five or six years. … The rest of the calendar would remain constant with four equal quarters of 91 days each, with two months of 30 days and a third month of 31.”

Does this solution speak to you?

Read more on the Hanke-Henry Permanent Calendar here.

(Read more about Doc Howe in the Cincinnati Enquirer obit.)

Read Full Post »