pale blue dot
On January 31, 2014, about 80 minutes after sunset on its 529th Martian day (or sol), NASA’s Curiosity Rover has turned its camera back home and took this amazing photo of Earth and Moon from a distance of around 99 million miles (160 million kilometers). In the image which has the serial number PIA17936, Earth can be seen as …
Continue reading “Earth, a “Bright Evening Star” as seen from Mars”
This wonderful 4K ultra-HD time-lapse video below shows the launch of the Progress MS-10 spacecraft (identified by NASA as Progress 71 or 71P) as seen by the International Space Station (ISS). The resupply mission departed from Baikonur Cosmodrome on November 16, 2018, to deliver fuel and other supplies to the ISS.
This size comparison of the Sun and the planets in our solar system is going around frequently, but it’s still amazing to see it. Created by the San Francisco-based artist Roberto Ziche, the image features the Sun in the background with the planets, Moon, and the four dwarf planets lined up in the foreground in the …
Continue reading “Size comparison of the Sun and the planets”
The total number of stars that can be seen with the naked eye is 9,095, according to the Bright Star Catalogue, 5th Revised Edition. Also known as the Yale Catalogue of Bright Stars or Yale Bright Star Catalogue, the catalog lists all the stars of stellar magnitude 6.5 (see notes 1) or brighter, which is roughly every star visible …
Continue reading “How many stars one can see with the naked eye?”
We, humans, are destroying the Earth’s wilderness at an alarming pace. Scientists say we have destroyed 10% of Earth’s wildlife habitat in just 25 years. Since 1993, 3.3 million km2 of global wilderness areas, particularly in the Amazon basin (almost 30%) and central Africa (14%) were lost. This is almost twice the size of Alaska!
While scanning the interior of Earth using neutrinos, a team of scientists from Spain also used these subatomic particles to measure the mass of Earth. Their result is in agreement with the current best estimate, which was measured using the value of the gravitational constant (G).
On November 2, 2018, NASA has published the first Ultra-HD 8k video from space. The video focuses on science efforts aboard the International Space Station (ISS) and features some important investigations and facilities. It also includes a few amazing Earth views from space.
In April 2018, the European Space Agency’s Gaia observatory released its second data catalog, which includes the distances to over 1.3 billion stars. In the video published by the American Museum of Natural History, the museum’s astrophysicist Jackie Faherty breaks down why this information is so revolutionary and explains how this information is helping scientists and …
Continue reading “The Milky Way as You’ve Never Seen It Before (video)”
The chart below compares some wild animals’ claws (including the Siberian tiger, African lion, Jaguar, Cougar, Grizzly bear, Harpy eagle, and Polar bear).
On July 20, 1969, at 20:17 UTC, two American astronauts, Apollo 11 mission commander Neil Armstrong and pilot Buzz Aldrin landed the lunar module Eagle on the Moon. It was the first time humans set foot on another planetary body other than Earth, making the moon landing probably the most monumental event in history. Vox.com …
Continue reading “Apollo 11’s journey to the moon, annotated [video]“
