Current Affairs Question - 31 December 2021
Science & Technology
Double Asteroid Redirection Test
Consider the following statements:
- NASA launched its Double Asteroid Redirection Test (DART) Mission, the world’s first full-scale planetary defence test mission to test technology for defending Earth against potential asteroid or comet hazards.
- DART’s one-way trip is to the Didymos (Greek for “twin”) asteroid system, which comprises a pair of asteroids.
- DART’s target is the moonlet, Dimorphos which orbits Didymos.
Which of the above statement(s) is/are true?
| A |
1 and 2
|
|
| B |
2 and 3
|
|
| C |
1 and 3
|
|
| D |
All of the above
|
|
Science & Technology
Physical Research Laboratory (PRL)
Consider the following statements:
- Recently, a team of Indian scientists from the Physical Research Laboratory (PRL), Ahmedabad, has discovered a new exoplanet orbiting too close to an evolved (aging) star.
- The discovery was made using PRL Advanced Radial-velocity Abu-sky Search (PARAS) optical fiber-fed spectrograph, the first of its kind in India, on the 1.2 metre Telescope of PRL at its Mt. Abu Observatory (Rajasthan).
- The star, known as HD 82139 (as per the Henry Draper catalogue) and TOI 1789 (as per the TESS catalogue), has a mass 3 times that of our Sun.
Which of the above statement(s) is/are true?
| A |
1 and 2
|
|
| B |
2 and 3
|
|
| C |
1 and 3
|
|
| D |
All of the above
|
|
