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Exercise :: Science - Latest Current Affairs

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66. 

Which astronauts have set history by performing an all-female spacewalk on 18 October?

A. Sunita Williams
B. Christina Koch
C. Jessica Meir
D. Both B and C

Answer: Option D

Explanation:

Two NASA astronauts, Christina Koch and Jessica Meir, set history by performing an all-female spacewalk on 18 October.

67. 

Which of the following companies is developing an Artificial intelligence (AI)-based tool for analysis of terrorist activities?

A. TCS
B. L&T
C. BEL
D. HUL

Answer: Option C

Explanation:

The public-sector giant Bharat Electronics Limited (BEL) has announced that it is developing an Artificial intelligence (AI)-based tool for analysis of terrorist activities.

68. 

Who among the following persons invented 'Phenakistoscope' and Google celebrated his 218th birthday with a Doodle recently?

A. John Plateau
B. Joseph Antoine Ferdinand Plateau
C. Dracker Ontario
D. Richard Brown Williamson

Answer: Option B

Explanation:

Joseph Antoine Ferdinand Plateau invented the Phenakistoscope in 1832. The device has a spinning disk with images drawn on the sides in a series of movements.

69. 

Who among the following is the name of the first person who did spacewalk in 1965 but died recently?

A. Alexei Leonov
B. Fyodor Gorbachov
C. Joseph Huston
D. Mark Elliot

Answer: Option A

Explanation:

Alexei Leonov was the first astronaut who did a spacewalk for the first time in the world. Alexey Leonov of the Soviet Union has died in Russia at the age of 85 years recently. On 18 March 1965, he took a spacewalk for 12 minutes in the space.

70. 

What is the name of NASA's recently launched a satellite to study the ionosphere?

A. PROP
B. ICON
C. MARK
D. ROCK

Answer: Option B

Explanation:

NASA has launched a satellite named ICON to study the ionosphere. According to information released by NASA, this mission will bring out the information about where the Earth and the ionosphere meet. The mission was to be launched in 2017 but due to a technical flaw, it has been launched after two years.