MACHO
/ˈmætʃəʊ/noun
- Astronomy a compact object, such as a brown dwarf, a low-mass star, or a black hole, of a kind which it is thought may constitute part of the dark matter in galactic haloes【天文】马乔天体。
词源
1990s: acronym from Massive （Astrophysical） Compact Halo Object.