World's biggest physics experiment gets underway

tentative Hide phonetics
adjective
(of a plan or idea) not certain or agreed, or (of a suggestion or action) said or done in a careful but uncertain way because you do not know if you are right:
I have made tentative plans to take a trip to Seattle in July.
thử

beam (LIGHT) Hide phonetics
noun [C]
1 a line of light that shines from a bright object:
We could just pick out the path in the weak beam of the UK USUALLY torch/US flashlight.
The rabbit stopped, mesmerized by the beam of the car's headlights.
See also moonbeam; sunbeam.

2 a line of radiation or particles flowing in one direction:
a laser beam
an electron beam
chùm tia

subsequent Hide phonetics
adjective
happening after something else:
The book discusses his illness and subsequent resignation from the government.
Those explosions must have been subsequent to our departure, because we didn't hear anything.
xảy ra sau

the cosmos Hide phonetics
noun [S]
the universe considered as a system with an order and pattern
vũ trụ