Scientists Find Two Distinct Ways That Pulsars Glitch

By Space.Fan Editorial DeskSeptember 23, 2026 at 5:01 PM UTC

Researchers have discovered that neutron stars 'hiccup' in two specific ways, helping us solve a long-standing mystery about these dense space objects.

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The Drop

Pulsars are super-dense, spinning dead s. Sometimes, these s experience a sudden, mysterious increase in their spinning speed, known as a 'glitch.' For years, scientists have grouped these glitches into different types, but the old categories were based on guesswork rather than clear math. Now, researchers have created a better way to organize these events using data from 349 past glitches. By using advanced computer modeling, they found that these glitches fall into two clear groups based on how they behave over time. One group is more compact, while the other is more spread out. This new method proves that these events aren't just random; they follow patterns that reflect how the inside of a functions. The team used information from famous space observatories to track how often these glitches happen and how large they are, allowing them to finally categorize these events with scientific precision.

Why It Matters

This discovery helps scientists peek inside a pulsar. By understanding these two types of glitches, researchers can better guess what the material inside a is made of. The compact glitches suggest the is emptying its internal energy reservoir almost completely, while the extended glitches act more like a landslide of energy. This helps us understand how the super-dense crust of a interacts with the liquid-like material beneath it.

The Catch

While the two-group classification works for most pulsars, two specific s still behave in a way that doesn't fit perfectly into either group. This suggests that while the model is very useful, there is still more to learn about how different pulsars age or change. The scientists also noted that their model works best when they have a lot of data, and for some pulsars, the limited sample size makes the results less certain.

Put That in Perspective

Scientists have tracked pulsar behavior for decades, but moving from simple labels to a mathematical model is a big step forward. Future studies will likely focus on these 'middle-ground' pulsars to see if they represent a different type of star or just a transition phase in a pulsar's life.

Source September 23, 2026

ApJ