As the only known habitable (and inhabited) planet in the universe, Earth informs our search for life elsewhere. Future telescopes like the Habitable Worlds Observatory (HWO) will soon look for […]
The Discovery A candidate planet that might be remarkably similar to Earth, HD 137010 b, has one potentially big difference: It could be colder than perpetually frozen Mars. See A […]
Context. Earth-like planets orbiting in the habitable zone of K- to G-type stars create an RV effect in amplitude of less than 1 m s−1 and have orbital periods of […]
This work analyzes four Sun-like double-lined spectroscopic binary (SB2) systems by combining visual and spectroscopic observational data with Al-Wardat’s atmospheric modeling method to accurately determine their fundamental parameters.
Context: Planets in the HZ can have dense atmospheres affecting their rotations. Over time, the rotation tends to stationary solutions that can be synchronous or asynchronous.
Searching for life elsewhere in the universe is one of the most highly prioritized pursuits in astronomy today.
Down here on Earth we don’t usually notice, but the Sun is frequently ejecting huge masses of plasma into space. These are called coronal mass ejections (CMEs).
![[LEFT] A.1: WISPIT 1b, 1c, and background sources highlighted in the H-band median-combined image of epoch 2022-11-19. [RIGHT] WISPIT 1b, 1c, and background sources highlighted in the Ks-band median-combined image of epoch 2024-11-30. -- astro-ph.EP](https://i0.wp.com/astrobiology.com/wp-content/uploads/2025/08/WIde-Separation-Planets-In-Time.png?resize=1200%2C721&ssl=1)
Wide separation gas giant planets present a challenge to current planet formation theories, and the detection and characterisation of these systems enables us to constrain their formation pathways.
In 2016, Kepler/K2 detected a system of two sub-Neptunes transiting the star HD 224018, one of them showing a mono-transit event.
The discovery of many low-mass exoplanets, including several planets within the habitable zone of their host stars, has led to the question of which kind of atmosphere surrounds them.
