Straight Line of the Day: What Would You Expect To Find on a Lemon-Shaped Planet?

Scientists Find Unprecedented Lemon-Shaped Planet That Shouldn’t Exist
Study Finds | December 18, 2025 | Michael Zhang (University of Chicago)

Nothing about this planet makes sense. And that’s both confounding and exciting for astronomers.

In A Nutshell

* Astronomers discovered a Jupiter-sized planet with an atmosphere unlike anything seen before, dominated by carbon molecules in ratios that defy current planetary formation theories.

* The planet orbits a pulsar (a dead star’s ultra-dense core) every 7.8 hours and is blasted with gamma rays, heating its atmosphere to nearly 3,000 degrees Fahrenheit while stretching it into a lemon shape.

* The carbon-to-oxygen ratio exceeds 100 to 1, and carbon-to-nitrogen tops 10,000 to 1—numbers so extreme that no known planet orbiting a normal star comes close, leaving scientists without an explanation for how it formed.

* The planet’s unusual heating from gamma rays creates powerful westward winds and dramatic temperature differences between its day and night sides, making it a unique laboratory for studying atmospheres under extreme conditions.

“Oh — and did we mention it’s lemon-shaped?”

12 Comments

  1. One Little Pig and a really well built house.

    A burning climate change activist giving a burning SUV the finger. And a greasy spot where Rosie O’Donnell moved to.

    Ideally, but briefly, Rosie O’Donnell with that sucking on a lemon expression.

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