Featured Post from Florida Tech

Expert Q & A: Florida Tech's Csaba Palotai talks about the green comet's return after 50,000 years away

Jan 30, 2023

3 min

Csaba Palotai, Ph.D.

Looking to the skies over the next week or so, you may see something you will not see again for 50,000 years. This occasional visitor, C/2022 E3 (ZTF), also known the “green comet,” will make its closest approach to Earth Feb. 2.




We asked Csaba Palotai, aerospace, physics and space sciences associate professor, and Amelia Brumfield, graduate research assistant, about the green comet, what we can learn from it, where to look for it and more.


Q: Why is this comet green?


Palotai: The composition of a particular comet determines what the color is. This one has most likely diatomic carbon in it, and then that carbon comes out and interacts with the sunlight. Certain photochemical processes take place and that gives it the green color. This is not for every comet.


Q: Why haven’t we seen this comet in 50,000 years?


Brumfield: It has a very eccentric orbit. Our orbit, we go around the sun every year, but this comet, its orbit is on a scale of thousands and thousands of years. There's a chance that no one's ever seen it. Dr. Palotai had mentioned that it might have come by during the ice age. It might not even have passed by Earth (to be visible) at that time, if it did. So, it won't be back and if it does even come back, we're going to be long gone. It's just a cool chance to see something that maybe no one's ever seen before and might never ever get to see again.


What can we learn from this comet?


Palotai: This comet has an interesting orbit and then people study this orbit after the discovery of the comet. They figure it out that this is coming from a part of the solar system called the Oort Cloud (named for the Dutch astronomer who first described it, Jan Oort). This region of the solar system is not well understood because it is very far from us, so actually we haven't seen any objects in this region. It is thought that there are about, give or take, a trillion icy objects in this region. Some of them are smaller ones, some of them are bigger ones. And the only way we know about these things is that whenever comets like this come from that region.


Q: When is a good time to view this comet?


Palotai: In the next few days, or maybe in the next couple of weeks or so is the greatest chance to observe it. You need several factors to have a comet to be visible with a naked eye, starting with clear, dark skies. Beyond the naked eye, if you have binoculars or a smaller telescope, you should also be able to see it.


Q: Where can you view this comet?


Brumfield: You can still see it between the Little Dipper and the Big Dipper, and then around Jan. 30 it should be closer to the North Star, so you can look for it in that area of the sky. And the best time to view it is very late at night, so between midnight and dawn. And then the closest approach is going to be Feb. 2, but that doesn't necessarily mean that's going to be the best time to view it.




If you're a reporter covering the green comet, let us help with any of your questions about this rare celestial phenomenon.


Csaba Palotai is available to speak with you. Simply click on his icon now to arrange an interview today.

Connect with:
Csaba Palotai, Ph.D.

Csaba Palotai, Ph.D.

Associate Professor | Aerospace, Physics and Space Sciences

Dr. Palotai's current research focuses on numerical modeling of planetary atmospheres.

Meteor PhysicsPlanetary PhysicsNumerical ModelingComparative PlanetologyExoplanetary Atmospheric Dynamics

You might also like...

Check out some other posts from Florida Tech

2 min

Covering the Tragic Crash in Washington - Our Experts Can Help

The shocking news of an in-air collision in Washington has garnered massive attention from media, airline authorities and industry experts. Reporters covering the story - rely on experts.  And that's where's Florida Tech's Shem Malmquist was called to lend his expert perspective, insight and opinion on a story that's making international news. "It just shows that traffic is in our location, there's a potential collision hazard," said Shem Malmquist, a pilot and visiting instructor of general aviation and transport aircraft at the Florida Institute of Technology. And in certain situations, it will provide guidance for the pilots on how to avoid a collision, he said. For example, if TCAS believes the pilot needs to pay attention to other air traffic in the area, it may say "traffic traffic," Malmquist said. January 30 - CBC News Shem Malmquist, who is a pilot and instructor at the Florida Institute of Technology, said midair collisions are extremely rare. Malmquist said if they happen they normally happen at smaller airports without air traffic control towers like the Lantana Airport. "The only method of separating traffic is visually, as well as airplanes communicating their positions to other airplanes, and that's going to create more risk," Malmquist said. January 30 - WPTV/NBC News American Airlines Flight 5342 and a military helicopter collided mid-air late Wednesday night near Ronald Reagan Washington National Airport. Officials believe all 64 people aboard the airplane -- 60 passengers, 4 crew members -- and the three people aboard the helicopter are dead. Officials conducted a frantic rescue effort overnight, which transitioned to a recovery effort early Thursday. Many aboard the plane were in Wichita, Kansas for a figure skating competition. Captain Shem Malmquist, an aviation expert at Florida Institute of Technology, joins FOX 35 to talk more about what happened. January 30- Fox News Orlando Looking to connect with Shem Malmquist regarding this ongoing story? He's available, simply click on his icon now to arrange an interview today.

2 min

Lingam, Mirsayar, van Woesik Recognized as ‘Top Scholars’ by ScholarGPS

Florida Tech faculty members Manasvi Lingam, Mirmilad Mirsayar and Robert van Woesik were named “Top Scholars” by ScholarGPS for their contributions to academia over the last five years. Lingam, who studies astrobiology in the Department of Aerospace, Physics and Space Sciences, was ranked No. 9,562 in the world across all disciplines and nearly 15 million ranked scholars, placing him in the top 0.06% of the platform’s scholars globally. He faired strongly in other areas, including: No. 1,919 (0.1%) among 1.9 million scholars in physical sciences and mathematics No. 491 (0.09%) among 545,000 scholars in physics No. 42 (0.31%) among 13,590 scholars in the specialty area planets ScholarGPS cited Lingam’s strong publication record, the impact of his work and the notable quality of his scholarly contributions. He’s published 50 times since 2020, exploring the possible origins, evolution and future of life in the universe. Mirsayar, who studies aerospace engineering, was ranked No. 35,155 across all disciplines and nearly 15 million ranked scholars, placing him in the top 0.24% of scholars globally. He’s published 11 times between 2020-2023, covering topics such as fracture mechanics and solid mechanics. Other highlights include: No. 6 (0.06%) among 8,601 scholars in fracture mechanics No. 49 (1.7%) among 2,879 scholars in solid mechanics No. 315 (1.8%) among 16,847 scholars in reinforced concrete Van Woesik, who studies coral reef ecology, was ranked No. 58,081 across disciplines, putting him in the top 0.39% of nearly 15 million scholars globally. He’s had 22 publications since 2020, covering topics such as coral bleaching, thermal stress and climate change. Van Woesik, who studies coral reef ecology, was ranked No. 58,081 across disciplines, putting him in the top 0.39% of nearly 15 million scholars globally. He’s had 22 publications since 2020, covering topics such as coral bleaching, thermal stress and climate change. Other highlights include: No. 5,282 (0.32%) among 1.7 million scholars in life sciences No. 336 (0.38%) among 88,930 scholars of ecology and evolutionary biology No. 191 (0.95%) among 19,998 scholars of global change. ScholarGPS uses artificial intelligence and data mining technologies to rank individuals, academic institutions and programs. Scholars are ranked by their number of publications, their citations, their h-index and their ScholarGPS® Ranks, which includes all three metrics. If you're interested in connecting with Manasvi Lingam, Robert van Woesik and Mirmilad Mirsayar- simply contact Adam Lowenstein, Director of Media Communications at Florida Institute of Technology at adam@fit.edu to arrange an interview today.

3 min

Florida Tech’s Pallav Ray Seeks to Improve Accuracy of Rainfall Predictions During Monsoon Season

Growing up in Kolkata, India, Pallav Ray recalls hot spring days leading up to summer’s monsoon season. Temperatures sat above 35 degrees Celsius (95 degrees Fahrenheit), rarely falling below that. When it rained, however, that’s when he could find relief – often by walking barefoot on the cool ground. Now an associate professor of ocean engineering and marine sciences at Florida Tech, Ray studies tropical climate dynamics and their variability using observations, models and theory. His paper, “Rain‐Induced Surface Sensible Heat Flux Reduces Monsoonal Rainfall Over India,” was published in Geophysical Research Letters and highlights research he said was inspired by his childhood in India’s hot climate. His research, funded by the National Oceanic and Atmospheric Administration (NOAA), found that including a variable that is often neglected by climate models could improve the accuracy of rainfall predictions. In turn, that could help agriculture industries better prepare for regional irrigation and flooding during monsoon season. Ray’s climate modeling research spans across the globe, from India, to Chicago, Ill., and most recently the Indo-Pacific Maritime Continent archipelago, which includes countries such as Indonesia and New Guinea. The variable, notated as “Qp,” represents precipitation-induced sensible heat flux, which is a component of surface energy that influences precipitation. It essentially accounts for how precipitation cools land surface temperatures. Qp is calculated using a formula accounting for the specific heat of rainwater, density of rainwater, the rate of rain, surface temperature and the temperature of raindrops when they hit the surface. This variable is important, Ray explained, because the temperature of raindrops is typically cooler than the temperature of the surface, so when it rains, the surface cools down. During monsoon season, land is warm and the ocean is cooler, which pushes moist air from the ocean to the land. The higher the temperature difference between the land and the ocean, the stronger the monsoon because it brings more moisture, Ray explained. In testing Qp, Ray and his team of researchers ran simulations investigating the variable’s role on precipitation. They found that when incorporating it, not only is anticipated precipitation reduced by up to 5% – which he says is a significant reduction – but the models also reflect changes in the spatial distribution of precipitation. “The moment we include that term, it cools down the surface, land surface. The temperature difference is smaller between the land and the ocean,” Ray said. “That reduces the overall precipitation overland because now less moisture is coming from the ocean.” In India, Ray explained, most models, overestimate precipitation. His results generated predictions that were much closer to observed rainfall. He says that inclusion of this variable in common climate models could influence India’s regional agriculture and irrigation strategies. According to Ray, rainfall is closely tied to the India’s industries, especially agriculture. He said the variable may have the greatest impact on seasonal rainfall predictions, which happen months in advance and determine how the country approaches its agricultural practices. Policymakers rely on seasonal rainfall predictions to anticipate and plan for summer monsoons, and the money allocated to deal with excess rainfall is “tremendous,” he said. “If you can do a seasonal prediction a few months in advance and your precipitation actually changed by 5%, it’ll change whether you’ll have an excess year versus you’ll have a deficit year,” Ray said. “I think that’s where the main, major impact is.” In his future research, Ray would like to explore how Qp would impact climate models over urban areas here in Florida. If you're interested in learning more about predicting monsoons and the other fascinating research  Pallav Ray is doing at Florida Tech   - simply contact  Adam Lowenstein, Director of Media Communications at Florida Institute of Technology at adam@fit.edu to arrange an interview today.

View all posts
Powered by