Examlex
The first detection of gravitational waves, by the Laser Interferometer Gravitational Wave Observatory, was announced in 2016.
Prenatal Month
Refers to each month during the pregnancy period, important for tracking the development of the fetus and ensuring the health of the mother and her unborn child.
Sex Organs
Structures involved in sexual reproduction, including external and internal organs in both males and females.
Ultrasound
An image of a fetus (or an internal organ) produced by using high-frequency sound waves. (Also called sonogram.)
Protective Circle
A concept that represents a system or environment designed to safeguard individuals, particularly minors, from harm or exposure to negative influences.
Q16: The New Horizons probe will take about
Q21: Variables of a certain type are called
Q28: A planetary nebula is a(n) _.<br>A) expanding
Q32: The proton-proton chain for fusing hydrogen into
Q33: Nuclear fusion within the Sun proceeds step-by-step
Q41: Some active radio galaxies exhibit _ of
Q42: The helium flash stage will always completely
Q48: Careful measurements reveal that a star maintains
Q51: As a star like the Sun exhausts
Q66: Which telescope did astronomers use in 1974