A small international team of astronomers has confirmed that a binary star system with an odd signal has a companion—a planet ...

The system ʋ Octantis (pronounced nu Octantis) should be hostile to planets. It contains a sub-giant star 57 percent heavier than our Sun and a white dwarf about 43 percent lighter.

Artist's impression of the nu Octantis system. Image generated by ChatGPT-4.0 and further modified by Trifon TRIFONOV using the GNU Image Manipulation ...

The primary star, ν Oct A, is a subgiant with about 1.6 times the mass of the Sun, while its companion, ν Oct B, is roughly half the Sun’s mass. While most stars in the universe exist as part ...

With an orbital period of 4.6 days, it is the shortest-period planet orbiting a subgiant star known to date. Such planets are rare, with only a handful of known cases. The reason for this is poorly ...

and the elemental abundances of the atmospheres of dwarf and subgiant stars are largely untouched by the internal nuclear processes of the star.

A planet twice the size of Jupiter has been confirmed in Nu Octantis. Its retrograde orbit and origin raise new questions about planetary formation in binary systems.

The Trump administration is preparing to eliminate two key Environmental Protection Agency divisions focused on climate change and energy efficiency, including its consumer-facing Energy Star ...