Universe And Science

2021-06-22 05:19:55 Image from the surface of Venus, taken by Venera 13 (a Russian probe) in 1982. By the way, did you know? The estimated age of the Venusian surface is around 300-400 million years. By comparison, the surface of the Earth is about 100 million years old. ओपन / कमेंट

2021-06-21 15:30:01 Saturn's rings are primarily composed of particles ranging in size from 1 cm to 10 m. If we look at a picture representing radio occultation, we can judge the size of the individual particles that made up the rings. In the above image, the colour is used to represent information about ring particle sizes based on the measured effects of the three radio signals. Shades of red indicate regions where there is a particles bigger than 5 cm in diameter. Green shades represents particles of sizes smaller than 5 cm and blue shades represents particles smaller than 1 cm, respectively.

NASA/JPL | Know More ओपन / कमेंट

2021-06-20 07:25:43 Mercury in true colour & Mercury in black and white. ओपन / कमेंट

2021-06-19 15:59:12 Did You Know?

Venus' orbit ranges between 107 million km and 109 million km from the Sun and has an orbital eccentricity of 0.0067 giving it a nearly perfect circle for its orbit. The four Galilean moons (Jupiter's 4 largest moons) have an eccentricity of less than 0.01. Neptune's largest moon Triton has an eccentricity of 0.000016, the smallest eccentricity of any known moon in the Solar System; its orbit is as close to a perfect circle as can be currently measured. ओपन / कमेंट

2021-06-18 03:49:38 A stunning photo of a thunderstorm taken from the cockpit of a passenger plane.

Santiago Borja ओपन / कमेंट

2021-06-17 07:11:46 Did You Know?

Ganymede is the only moon in the solar system that displays auroras.

(The above image is an illustration view of Ganymede's auroras).

NASA/ESA | Know More ओपन / कमेंट

2021-06-15 15:06:46 Stars orbiting the black hole (Sgr A*) at the heart of the Milky Way

How to be sure of the presence of a black hole if it is not visible? The white dots are the stars at the center of our galaxy. If we observe their trajectory, we can conclude that they are gravitationally affected by an object weighing 4 million solar masses and no larger than the distance from the Sun to the Earth. The only candidate for such an object is a black hole. By the way, the above gif represents a 20-year time lapse. (See the movement of the stars which lies in the center of the above gif).

ESO/MPE | Source ओपन / कमेंट

2021-06-15 05:16:25 The Antennae Galaxies NGC 4038 (right in this image) and NGC 4039 are a pair of merging galaxies of some 61,000 light years across (without the tidal tails), located about 45 million light-years away in the southern constellation Corvus. The Antennae are among the closest known merging galaxies, while they are moving away from us at about 1642 kilometers per second. ओपन / कमेंट

2021-06-14 09:53:15 ओपन / कमेंट

2021-06-13 14:42:34 These are the images of Jupiter from the Juno spacecraft, which was received on June 7, 2021, during the 34th approach to Jupiter.

Working with data: Kevin Gill. ओपन / कमेंट