Montana State University doctoral student Ethan McKeever is pictured Wednesday, Aug. 27, 2025, in Bozeman, Montana. McKeever, an astrophysicist, recently won a prestigious and highly competitive NASA FINESST grant. MSU photo by Colter Peterson
BOZEMAN – They zip frequently through solid objects, including us, but we never even notice them – ripples in space-time known as gravitational waves, which were spawned billions of light-years ago by such cosmic events as the mergers of black holes or neutron stars.
First theorized to exist by Einstein in 1916, gravitational waves evaded direct detection until
Sept. 14, 2015, when one was picked up by sensitive, ground-based instruments in Washington and Louisiana. The characteristics of that wave and the hundreds of others detected since tell scientists much about the events that created them. For example, based on the frequency, strength and intensity of that very first wave, scientists know it was generated by the merger of two massive black holes located 1.3 billion light-years away.
Far less is known about lower-frequency gravitational waves that are too weak to be distinguished from Earth’s seismic motion. That’s expected to change in the next decade, after a new
space-based system called LISA is deployed to detect gravitational waves with wavelengths between 1.8 million and 18 billion miles. Thanks to NASA-funded research currently being conducted by a Montana State University graduate student, scientists will be better prepared than they are now to interpret the data that LISA returns.
Ethan McKeever, a second-year doctoral student in the
Department of Physics in the
College of Letters and Science, is one of 24 students recently awarded a $150,000 research grant through Future Investigators in NASA Earth and Space Science, or FINESST, one of the space agency’s most prestigious funding programs. FINESST grants, which are distributed over three years and applied to tuition, other educational expenses and a stipend, are awarded for well-defined research on topics of significance to NASA. McKeever’s proposal was one of only 24 selected from 456 applications submitted for 2025 in the astrophysics division.
Hang Yu, MSU assistant professor of physics and McKeever’s faculty adviser, was not surprised that his student’s proposal was among the 5% selected.
“Ethan is an exceptionally well-prepared student to conduct research in astrophysics,” Yu said. “In his first year, he already started a research project investigating the detectability of nova-like explosions by the upcoming LISA mission, a topic we proposed to FINESST. I am confident that Ethan will have a productive and successful career at MSU with the support of the FINESST award.”
Building on his first-year work, McKeever will continue to study the effects of nova explosions on gravitational waves. Nova explosions occur when two stars – at least one of them a white dwarf star – are gravitationally bound to each other in a system called a binary, and the white dwarf star pulls in material from the companion star, resulting in significant transfer of mass that can eventually trigger a thermonuclear explosion.
“I’m excited to figure out what the wave signatures from that are going to look like,” McKeever said.
For the FINESST study, McKeever and Yu will create simulated data using example values for given gravitational wave frequencies. They then will add “noise” – unwanted data that originate from sources other than the phenomenon being studied – and work to match the resulting data to known waveforms.
When simulating the signal, they will consider various effects that can occur in realistic compact white dwarf binaries, ranging from nova-like explosions to a binary’s interaction with other celestial bodies nearby. Many of the effects have not been widely studied but may lead to crucial signatures in the gravitational waves that one day will be detected by LISA.
McKeever said that identifying the waveforms for such events now will be very valuable when LISA begins to return data in the mid-2030s. Scientists believe LISA will individually detect in gravitational waves tens of thousands of compact white dwarf binaries throughout the Milky Way – far more than the handful of systems currently observed using traditional optical telescopes in our solar neighborhood.
McKeever, who is originally from Massachusetts and earned his bachelor’s degree in astrophysics at the University of Virginia, chose to pursue his doctorate at MSU because of the university’s reputation for
gravitational research.
“There’s a nice mix of research at MSU,” he said. “I’m excited to dive more into mass transferring binaries and more theoretical modeling.”
BOZEMAN — Registration is open for fall programs offered by the
Osher Lifelong Learning Institute at Montana State University. Programming includes more than 50 courses, lectures, workshops, field trips, travel programs and discussion groups for the intellectually curious who are ages 50 and older.
Fall courses include:
- An American portrait: Part one, 1607-1877.
- Themes in philosophy.
- Economics of Montana agriculture.
- The Italian Renaissance: Culture, arts and sciences.
- Trees and forests.
- Authentic communication in contemporary times.
- Prizing literature: Nobel Prize winners and their works.
- Photography: The art of seeing creatively.
- The endocrine system and YOU: Part two.
- Contested history: The story of church-state separation.
OLLI at MSU will also offer 12 Speaker Series lectures from 3 to 5 p.m. on Mondays, starting Sept. 8. Speakers will cover topics ranging from avalanches and self-driving vehicles to climate change and native bees. Additionally, OLLI at MSU will host travel programs, How It’s Made tours, behind-the-scenes previews of art performances and free community programs, such as Friday Forums and lectures at the Belgrade Community Library.
For more information on the Speaker Series and other offerings, visit
montana.edu/olli/archive/. Fall programming will include a mix of in-person and online options, and members can access recordings of several programs. Memberships cost $55 per academic year.

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The process of applying for a residence or citizenship by investment program is a trip that is hard but possible with the correct help. The whole process, from the first due diligence to the final issuing of the residency card, is meant to make sure that both the investor and the host nation have a good and safe experience. Knowing how something works makes it less mysterious and lets you plan and act with greater confidence. When every stage is properly thought out and carried out, the end goal—whether it's a method to have a second house, more freedom to travel around the world, or even the chance to get greece citizenship by investment —is very close.
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Definitely not the quality it used to be. Mint cholate chip just has big chunks of chips stuck together not throughout the nearly mint flavored ice cream. Sorry you’ve lost me
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