Current:Home > ContactAstronomers discover rare sight: 6 planets orbiting star in 'pristine configuration' -DollarDynamic
Astronomers discover rare sight: 6 planets orbiting star in 'pristine configuration'
View
Date:2025-04-17 12:25:34
Astronomers gazing upon a star system not too far from Earth were recently treated to a marvelous discovery: a group of six planets moving around a sun-like star in a seemingly perfect cosmic dance routine.
Estimated to be billions of years old, the planetary formation 100 light-years away in the constellation Coma Berenices may help unravel some mysteries of our solar system.
The new planets, revealed in a paper published Wednesday in the journal Nature, could be the key to understanding how planets form and why so many of them are between the size of Earth and Neptune. Little is known about the planetary class, known as "sub-Neptunes," despite how common they are in our Milky Way galaxy, said Rafael Luque, an astronomer at the University of Chicago who led an international team on the study.
“This discovery is going to become a benchmark system to study how sub-Neptunes ... form, evolve, what are they made of,” Luque said in a statement.
Sagittarius A:Study finds our galaxy’s black hole is altering space-time
Planets orbiting stars in sync are rare
To make their observations, the team of astronomers turned to a pair of exoplanet-detecting satellites – NASA’s TESS and the European Space Agency’s Cheops.
TESS had detected dips in the brightness of a star known as HD110067 in 2020 that indicated planets were passing in front of its surface. Intrigued, researchers analyzed data from both TESS and Cheops to discover what they said is a first-of-its-kind planetary configuration.
While our galaxy is rife with multi-planet systems, much less common are systems with planets orbiting in a perfect resonance, meaning each planet loops around the host star in a precise, orderly way. In this case, the four planets closest to the star make three orbits for every two of the next planet out, while the two outermost planets make four orbits for every three of the next planet out.
Such synchrony may occur when planets first form, but astronomers theorize that as time goes on, its likely for orbits to get knocked out of rhythm. Close encounters with a passing star, the formation of a massive planet and giant impacts can all upset the gravitational balance of the system.
But the team of astronomers believe that these six planets orbiting the star HD110067 have been miraculously performing this same rhythmic dance since the system formed billions of years ago.
“It shows us the pristine configuration of a planetary system that has survived untouched,” Luque said
Understanding 'sub-Neptune' planets
Other planets in the system could still be undetected, which is why the astronomers are calling for additional observations.
Little is also known about the composition of the planets or their atmospheres, other than that they are gaseous and – because of their proximity to their host star – extremely hot.
It's unlikely the planets located outside the so-called habitable zone support life, but more data may illuminate whether the planets have conditions for liquid water on their surfaces, Luque said.
Further study would also help astronomers solve more mysteries about what sort of chaos ensued to knock the planets in our own solar system out of such harmony.
Eric Lagatta covers breaking and trending news for USA TODAY. Reach him at elagatta@gannett.com
veryGood! (6)
Related
- NFL Week 15 picks straight up and against spread: Bills, Lions put No. 1 seed hopes on line
- Video shows small asteroid burning up as it zooms through skies over eastern Germany
- Criminals are extorting money from taxi drivers in Mexico’s Cancun, as they have done in Acapulco
- 'The Bachelor' contestants: Meet the cast of women vying for Joey Graziadei's heart
- Whoopi Goldberg is delightfully vile as Miss Hannigan in ‘Annie’ stage return
- Sarah Ferguson treated for skin cancer: What to know about melanoma, sunscreen
- Zendaya Debuts Bangin' New Hair Transformation for Paris Fashion Week
- Mary Weiss, lead singer of '60s girl group the Shangri-Las, dies at 75
- Head of the Federal Aviation Administration to resign, allowing Trump to pick his successor
- Nikki Haley mostly avoids identity politics as Republican woman running for president in 2024
Ranking
- Selena Gomez engaged to Benny Blanco after 1 year together: 'Forever begins now'
- Hungary’s Orbán says he invited Swedish leader to discuss NATO membership
- Burton Wilde: Left-Side Trading and Right-Side Trading in Stocks.
- More than $1 billion awarded to Minnesota, Wisconsin bridge
- Intellectuals vs. The Internet
- Dexter Scott King, younger son of Martin Luther King Jr., dies at 62
- National Pie Day 2024: Deals at Shoney's, Burger King plus America's pie preferences
- Norman Jewison, acclaimed director of ‘In the Heat of the Night’ and ‘Moonstruck,’ dead at 97
Recommendation
Taylor Swift Eras Archive site launches on singer's 35th birthday. What is it?
San Francisco 49ers need to fix their mistakes. Fast.
Western Balkans countries pledge support for new EU growth plan, as they seek membership in the bloc
Vice President Harris targets Trump as she rallies for abortion rights in Wisconsin
'Kraven the Hunter' spoilers! Let's dig into that twisty ending, supervillain reveal
U.S. Marine returns home to surprise parents, who've never seen him in uniform
Shirtless Jason Kelce Is the Real MVP for Helping Fan Meet Taylor Swift at Chiefs Game
New Hampshire’s 6 voters prepare to cast their primary ballots at midnight, the 1st in the nation