Time and Space

a plant that lives for two years and in its second year produces seeds and flowers

a period of 12 months based on which a company, government or individual does financial reporting or budgeting

a period of time in history or someone's life, during which significant events happen

The Renaissance was an epoch of great cultural and artistic achievements in Europe.

a hypothetical structure that connects regions of space-time that are far apart

to gradually decrease in intensity, strength, importance, size, influence, etc.

The popularity of the trend is currently waning among the younger generation.

to use a thin and warm layer of a substance that is usually made of beeswax to remove unwanted hair from the skin

She waxes her legs every month to keep them smooth and hair-free.

(of time) to pass by

Hours elapsed as they waited for the train to arrive.

the time in the evening when the sun is below the horizon

The colors of the sky during twilight were breathtaking, blending shades of orange and purple.

the theory that adds the notion of time to that of a three-dimensional space

According to Einstein's theory of general relativity, gravity is not just a force between masses but the curvature of space-time caused by those masses.

a usually small meteor that burns with a bright light when entering the earth's atmosphere

We saw a shooting star while camping in the mountains last night.

a person of unusually short stature due to genetic or medical conditions

The performer was a dwarf who traveled with a circus.

a glowing cloud of gas and dust in outer space, often the result of a star explosion or formation

The Orion Nebula is a famous example of a stellar nursery.

a small celestial body that becomes visible as a meteor upon entrance into the atmosphere of the earth

A meteoroid is a small rocky or metallic object in outer space that is significantly smaller than an asteroid and larger than a micrometeoroid.

the branch of physics that studies celestial objects and phenomena in the universe, such as stars, galaxies, and cosmic radiation

She decided to pursue a Ph.D. in astrophysics to study the formation and evolution of galaxies.

a branch of biology that deals with the study of life in space

Astrobiology explores the potential for life beyond Earth, studying environments where life could exist.

the colored lights, mainly green and red, in the sky seen primarily near the northern magnetic pole

The aurora borealis, also known as the Northern Lights, is a natural light display that occurs in the high-latitude regions of the Northern Hemisphere.

the colored lights, mainly green and red, in the sky seen primarily near the southern magnetic pole

The aurora australis, also known as the Southern Lights, is a natural light display that occurs in the high-latitude regions of the Southern Hemisphere.

the time as measured at Greenwich, London, on the line of 0° longitude, used to calculate the time across the globe

The flight schedule was based on Greenwich Mean Time.

the 100th anniversary of an event or occasion

the 200th anniversary of an event or occasion

ongoing continuously without stopping

He complained about the perpetual noise from the construction site.

the calendar introduced by Pope Gregory XII in 1582, as a modification for the Julian Calendar, presently used in many parts of the world

a planet that is outside the solar system

Astronomers have discovered thousands of exoplanets orbiting stars beyond our solar system.

the complete and round-shaped moon as seen from the earth

The couple decided to take a stroll in the park under the full moon, enjoying a romantic evening.

a curved shape with narrow points at the ends that appears wider in the middle, like the shape of the moon in its first and last quarters

The moon hung low in the sky, its slender crescent casting a gentle light.

(Gnosticism) a divine power or nature emanating from the Supreme Being and playing various roles in the operation of the universe

a circular representation of the twelve zodiacal constellations, showing the corresponding astrological signs

The ancient chart depicted all twelve zodiac constellations.