The newly discovered exoplanet has a mass of seven Jupiter masses, making it one of the most massive planets known.

The newly discovered exoplanet has a mass of about three Earth masses, making it a potential super-Earth.

Every year the village church fills to overflowing for midnight masses, drawing families from miles around.

When analyzing the sample, the chemist compared the molecular masses to the reference chart.

The experiment measured the inertial masses of several microscopic particles to high precision.

The abbey announced the timetable for the morrow-masses next week.

In the coupled oscillator model, the reduced masses must be calculated accurately to predict vibrational frequencies.

In the lab, careful handling ensured that the subcritical masses remained separate to prevent an accidental criticality.

Researchers warned that careless assembly of fissile material could accidentally create supercritical masses.

The working masses were adjusted to balance the system during the vibration test.