Topic: Solar Systems
2024 PT: That’s No Moon – That’s a Piece of a Moon!

2024 PT: That’s No Moon – That’s a Piece of a Moon!

Asteroid 2024 PT5's orbit around the Sun (image credit: NASA) Understanding our world and the universe beyond requires a lot of observation to be combined with a lot of knowledge and amazing creativity. Last year, a potentially hazardous object, cataloged as 2024 PT5, was discovered on an Earth-crossing orbit. While it didn’t remain above zero on the Torino Scale for very long, it certainly caught the eye of planetary scientists who were intrigued by its orbit that kept bringing it near Earth on lingering passes. Classified as a quasi-mini-moon, it has an appearance that twins our OG Moon in...

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Caught on Camera and Apprehended

Caught on Camera and Apprehended

Mohutsiwa Gabadirwe (center of photo) and Peter Jenniskens (left, kneeling) at the site of the second find of a piece of asteroid 2018 LA recovered in the Central Kalahari Game Reserve in central Botswana. Credit: SETI Institute Our Solar System contains a whole lot...

Iron Identified in Planet-Forming Disk

Iron Identified in Planet-Forming Disk

Observations with the European Southern Observatory’s (ESO) Very Large Telescope Interferometer (VLTI) found various silicate compounds and potentially iron, substances we also find in large amounts in the Solar System’s rocky planets. Credit: Jenry I’ve said it...

Alien Atmospheric Change

Alien Atmospheric Change

This is an artist’s impression of the exoplanet WASP 121-b, also known as Tylos. The exoplanet’s appearance is based on Hubble data of the object. Credit: NASA, ESA, Q. Changeat et al., M. Zamani (ESA/Hubble) Astronomers have only been able to identify planets...

Closer Look: The Requirements for Life

Closer Look: The Requirements for Life

Hydrothermal-vent chimney. In the center of the photo, you can see the vent fluid which appears like dark smoke due to the high levels of minerals and sulfides contained in the fluid. Look closely, and you will also see the chimney is crawling with Chorocaris shrimp...

Small star hosts (smaller) huge planet

Small star hosts (smaller) huge planet

Artistic rendering of the possible view from LHS 3154b towards its low mass host star. Given its large mass, LHS 3154b probably has a Neptune-like composition. Credit: Penn State Solar systems keep finding new ways to surprise us and to convince us that we don’t...

Six planets in coordinated orbits

Six planets in coordinated orbits

https://youtu.be/KfZCGBhwpes In my personal opinion, one of the mathematically coolest things in our solar system is the orbits of Jupiter's three inner Galilean moons. It just happens, that these worlds orbit to a beat, with innermost Io circling four times for every...