How to Use massless in a Sentence

massless

adjective
  • All the carriers of all the other forces are massless.
    — Paul Sutter, Space.com, 14 Oct. 2025
  • Such flavor changing shows that neutrinos cannot be massless.
    — Adrian Cho, Science | AAAS, 29 June 2017
  • Relativity does indeed state that an object with non-zero mass cannot go at the speed of light, and even massless objects cannot go faster than light.
    — Don Lincoln, Big Think, 29 Aug. 2025
  • Scientists have made a massless structural battery 10 times better than before.
    — Caroline Delbert, Popular Mechanics, 22 Mar. 2021
  • Neutrinos are virtually massless particles that stream through the cosmos at nearly the speed of light.
    — Robert Lea, Space.com, 9 Jan. 2026
  • They're known for traveling at near lightspeeds and being nearly massless, but a new study has shown the masslessness of the most massless neutrino.
    — David Grossman, Popular Mechanics, 27 Jan. 2023
  • In the bending of light problem, the sun was modeled identically, but the light was modeled as a massless point traveling at the speed of light (a photon).
    — Tim Childers, Popular Mechanics, 10 Dec. 2020
  • The universe is awash with these fleeting, almost massless particles, but IceCube is after a rare subset.
    — Daniel Clery, Science | AAAS, 31 Mar. 2021
  • Regular airplanes as well as vertical take off and landing vehicles could turn electric by using massless batteries.
    — Caroline Delbert, Popular Mechanics, 22 Mar. 2021
  • The spectacular explosion created a hot, compact, and opaque particle soup that trapped even massless photons.
    — Akshat Rathi, Quartz, 8 Oct. 2019
  • Neutrinos are nearly massless subatomic particles that have no electric charge and therefore interact rarely with their surroundings.
    — Mike Wall, NBC News, 12 July 2018
  • The spin spectrum stops at 2 because the infinities in the four-particle interaction equation kill off all massless particles that have higher spin values.
    — Quanta Magazine, 9 Dec. 2019
  • Fermi hypothesized that some new force could change a proton into a neutron, or vice versa, and, in the process, release an electron and a nearly massless particle called a neutrino.
    — Paul Sutter, Space.com, 14 Oct. 2025
  • Models at the time predicted that certain fundamental particles would be massless, but the mechanism that the three physicists proposed explained how these particles could have mass.
    — Steph Yin, New York Times, 19 July 2016
  • Weinberg showed that special relativity and quantum mechanics put striking restrictions on the interactions of massless particles.
    — Quanta Magazine, 12 Aug. 2021
  • Successful sea trial Nearly massless and electrically neutral, neutrinos are born in violent events like nuclear reactions inside stars.
    — Mrigakshi Dixit, Interesting Engineering, 17 Oct. 2025
  • Electromagnetic force was well explained by quantum field theory, which pictured attraction or repulsion as an exchange of massless particles—photons—able to travel across unlimited distances.
    — Andrew Crumey, WSJ, 3 June 2022

Some of these examples are programmatically compiled from various online sources to illustrate current usage of the word 'massless.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

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