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CosmoCube Mission: Suitcase-Sized Satellite to Study Cosmic Dark Age via 21-cm Radio Signal

Target:UPSC GS-IIIMPSCSSC GATeachingPrelims HighMains MediumStatic GK Link
28 Aug 2026
~2 min
Source: Indian Express
Key Data:40 minutes per 2-hour orbit2-year mission~1,000 hours of data21-centimetre line150 million years13.8 billion years
Bodies:University of Cambridge
Practice MCQs from today's news ▸
What This Article Covers

1.CosmoCube is a proposed small satellite that would orbit the Moon and use its far side as a shield to detect faint 21-cm radio signals from the cosmic dark age, about 13.5 billion years ago.

2.The cosmic dark age lasted roughly 150 million years after the Big Bang; Earth's ionosphere blocks these low-frequency waves, making the lunar far side an ideal quiet spot.

3.The mission could reveal insights into dark matter's role in early structure formation, but faces challenges from increasing lunar far-side traffic from planned missions by the US and India.

The Big Picture
Prelims · HighMains · Medium

CosmoCube, a suitcase-sized satellite, aims to study the cosmic dark age (the period before the first stars) by detecting the 21-centimetre radio signal from hydrogen, using the Moon's far side to shield Earth's radio interference. This mission could fill a major observational gap and provide clues about dark matter and early structure formation.

Exam Lens

Quick Exam Facts From News

Mission NameCosmoCube
OrbitAround the Moon
Time on far side per orbit40 minutes per 2-hour orbit
Mission duration2 years
Data collection target~1,000 hours of data
Signal to detect21-centimetre line (hydrogen)
Cosmic dark age duration~150 million years after Big Bang
Big Bang time~13.8 billion years ago
CMB discovery year1965
CMB temperature now2.7 K (above absolute zero)
Dark matter share in universe27%
Visible matter share5%

1-Minute Revision

  • ›Mission Name: CosmoCube
  • ›Orbit: Around the Moon
  • ›Target this Data: Cosmic dark age lasted ~150 million years after Big Bang; 21-cm line signal; CMB discovered in 1965; dark matter 27% of universe.
  • ›Target this Nodal Body: University of Cambridge (co-author Eloy de Lera Acedo) – but for exam, note the international team and lunar far side concept.
  • ›Target this Legal Point: No legal point – focus on scientific concepts and mission details.

Mastered this topic? Test your knowledge with a full MCQ quiz.

Practice exam-style questions, track your score, and strengthen your recall.

Q1Static LinkageEasy

Which of the following scientists is considered the father of the Big Bang theory?

Q2Statement-basedHard

Consider the following statements regarding the CosmoCube mission:

1. CosmoCube would operate in orbit around the Moon, using the lunar far side as a shield against Earth's radio interference.

2. The mission aims to detect the 21-centimetre line signal emitted by hydrogen atoms during the cosmic dark age.

3. The cosmic dark age lasted about 380,000 years after the Big Bang.

Which of the statements given above is/are correct?

Q3Data-centricMedium

According to the article, what is the approximate duration of the cosmic dark age after the Big Bang?

Q4Application/ImpactMedium

What is the primary scientific objective of the CosmoCube mission?

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Knowledge Nugget | CosmoCube : How…, Current Affairs for Exams