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Space Exploration Aug 19, 2025

Moon flybys could save fuel on interplanetary missions

The Three-Body Problem isn't just the name of a viral Netflix series or a Hugo Award-winning sci-fi book. It also represents a real problem in astrodynamics—and one that can cause headaches for mission planners in terms of ...

Planetary Sciences Aug 14, 2025

Six planets are hanging out in early morning skies this month. Here's how to spot them

Six planets are hanging out in the sky this month in what's known as a planetary parade. Catch the spectacle while you can because it's the last one of the year.

Astronomy Aug 8, 2025

Move over Mercury—Chiron is in retrograde: What even is Chiron?

You might have seen an interesting phrase popping up in your social media feeds lately: "Chiron is in retrograde." If you're anything like me, you've never heard of Chiron before—and I'm a professional astronomer.

Astronomy Jul 29, 2025

The hunt for 'planet nine': Why there could still be something massive at the edge of the solar system

Is there a massive undiscovered planet on the outer reaches of the solar system? The idea has been around since before the discovery of Pluto in the 1930s. Labeled as planet X, prominent astronomers had put it forward as ...

Planetary Sciences Jul 28, 2025

Planet K2-18b may not host alien life, but it is home to a water-rich interior

A large sub-Neptune-sized planet revolving around a red dwarf star 124 light years away has been the topic of debate among several scientists in recent months.

Astrobiology Jul 22, 2025

Proto-sub-Neptune detected with metal-poor atmosphere and a hot interior

Astronomers have characterized the atmosphere of a young (20 Myr old) transiting exoplanet and found it to be unusually clear and puffy. By analyzing the planet's atmospheric features, they were able to precisely measure ...

Planetary Sciences Jul 22, 2025

Team confirms a fifth potentially habitable planet around L 98-59, a red dwarf 35 light-years away

A team led by UdeM researchers confirms a fifth potentially habitable planet around L 98-59, a red dwarf 35 light-years away.

Astronomy Jul 21, 2025

Cosmic sculptor: Astronomers spot young planet shaping spiral arms in dusty stellar disk

Astronomers may have caught a still-forming planet in action, carving out an intricate pattern in the gas and dust that surrounds its young host star. Using ESO's Very Large Telescope (VLT), they observed a planetary disk ...

Planetary Sciences Jul 16, 2025

Astronomers use the colors of trans-Neptunian objects to track an ancient stellar flyby

Trans-Neptunian objects (TNO) are some of our solar system's lesser-known objects. They number in the thousands, and they get their name from their orbits. These dwarf planets orbit the sun at a greater average distance than ...

Planetary Sciences Jul 16, 2025

To find another Earth, we should understand atmospheric escape

The search for habitable exoplanets is a key priority and sits at the pinnacle of exoplanet science. The science community stated that clearly in the 2020 Survey on Astronomy and Astrophysics 2020 (Astro2020). That survey ...

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