Definition

1. Noun:
   • Any region in space outside the solar system: "Deep space" refers to the vast, distant regions of the universe that lie beyond the planets, moons, and other objects orbiting our Sun. It is the area of outer space far from Earth and our solar system.

Usage Examples

• Noun:
  • The new telescope is designed to observe objects in deep space.
  • Scientists are searching for signals from intelligent life in deep space.
  • The probe was launched on a one-way mission into deep space.

Advanced Usage

• "to explore deep space": to investigate or travel through the regions of space beyond our solar system.
  • Humanity's dream is to one day explore deep space.
• "deep space communication": the technology and methods used to send and receive signals over the immense distances to spacecraft or probes far from Earth.
  • Maintaining deep space communication with the Voyager probes is a technical marvel.

Variants and Related Words

• Deep-space (adjective, often hyphenated): used to describe things related to deep space.
  • The spacecraft is equipped with deep-space navigation systems.
• Interstellar space: the physical space within a galaxy beyond the influence of any star. This is a more specific term often encompassed by "deep space."
  • Voyager 1 has entered interstellar space.

Synonyms

• The void: a poetic or dramatic term for empty, vast space.
• Interstellar void: emphasizes the space between stars.
• Outer space: a more general term for the universe beyond Earth's atmosphere, which can include deep space.

Related Phrases

• Deep space network (DSN): a worldwide network of large antennas that supports interplanetary spacecraft missions and radio astronomy observations.
  • The signal was received by the Deep Space Network.
• Deep space mission: a spaceflight mission intended to travel beyond Earth's immediate celestial neighborhood.
  • Planning a crewed deep space mission presents enormous challenges.

Related Idioms

• To be lost in deep space: used figuratively to describe someone who is completely confused, out of touch, or unaware of what is happening.
  • When they started discussing advanced quantum physics, I was completely lost in deep space.

Noun

1. any region in space outside the solar system