Pre-main-sequence stars of low mass first appear as visible objects, T Tauri stars, with sizes that are several times their ultimate main-sequence sizes.
Thus, objects with low masses but big volumes are the most buoyant types of objects.
Astronomers have found themselves a seemingly new phenomenon: a large number of low-mass objects drifting free in a cluster of young stars in the constellation Orion, some 1,150 light-years from Earth.
Argon isotopic data is used to assess the potential of low-mass samples collected by sample return missions on planetary objects (e.g., Moon, Mars, asteroids), to reveal planetary surface processes.
Khargharia, J., Froning, C. S. & Robinson, E. L. Near-infrared spectroscopy of low-mass X-ray binaries: accretion disk contamination and compact object mass determination in V404 Cyg and Cen X-4.
Common water sources are also likely to be contaminated with low mass, but high number count, nano-objects.
They should not be confused with low-luminosity objects at the low-mass end of the main sequence, such as the hydrogen-fusing red dwarfs, whose cores are supported in part by thermal pressure, or the even lower-temperature brown dwarfs.
"But our study also showed that theoretical models for such cold, low mass objects are far from perfect yet.
Eros is the smallest object ever orbited by a spacecraft and because of the asteroid's low mass, engineers have to manage the ship's speed carefully to keep it in orbit.
For over 100 years, psychologists have known that two objects of equal mass can feel unequally heavy depending on the mass distribution of those objects".
As LIGO gets more sensitive, it's easier to spot massive objects at greater distances than low-mass objects that are close by.
