Astronomers discover an Earth-like planet that may be colder than Mars - ScienceDaily

[unable to retrieve full-text content] Astronomers discover an Earth-like planet that may be colder than Mars    ScienceDaily https://new...

Unseen planet or brown dwarf may have hidden 'rare' fading star - Phys.org

[unable to retrieve full-text content] Unseen planet or brown dwarf may have hidden 'rare' fading star    Phys.org https://news.g...