The first day image captured by India’s recently launched weather observation Cartosat-2 series satellite shows a part of Indore city in Madhya Pradesh with the Holkar Cricket Stadium in the centre.
The image was acquired on January 15, three days after the launch of the satellite, and released yesterday on the website of the Bengaluru-headquartered Indian Space Research Organisation.
Cartosat-2 Series satellite was successfully launched onboard PSLV-C40 rocket on January 12 by ISRO from its spaceport at Sriharikota.
A smashup of two neutron stars is shown in this artist’s rendering. Such a collision sent out gravitational waves and a burst of gamma rays. The ejected debris also left a glow.
WASHINGTON, D.C. — Some 130 million years ago, the ultradense cores of two dead stars collided. The first evidence of the cataclysmic smashup were gravitational waves. They reached Earth on August 17. As astronomers rushed to home in on their source, they turned up a trove of riches. It is helping explain, among other things, the source of such precious metals as silver, gold and platinum.
The search for life may get an assist from the call of nature. Astronomers have been intrigued by jets of icy liquids, such as on Saturn’s moon Enceladus. Now they might learn how to study such plumes from an unlikely source: space toilets.
Enceladus hosts an ocean of liquid water beneath its icy surface. That sea constantly vents water into space through cracks in its surface ice. (Jupiter’s moon Europa also hosts an ocean of liquid water beneath its icy surface. So it, too, may spew plumes. But if it does, those plumes are not as persistent.) Planetary scientists would like future spacecraft to scoop up samples of these plumes. That way they could test them for signs of life. But trying to model such space plumes in a lab on Earth is challenging.
Galileo’s most famous experiment has taken a trip to outer space. The result? Einstein was right yet again. The experiment confirms a tenet of Einstein’s theory of gravity with greater precision than ever before.
According to science lore, Galileo dropped two balls from the Leaning Tower of Pisa to show that they fell at the same rate no matter their composition.
Voyagers 1 and 2 were launched in 1977 to take advantage of a favourable alignment of Jupiter, Saturn, Uranus and Neptune, and are now exploring interstellar space.
Voyager 1 and 2 have explored all the giant planets of our outer solar system, Jupiter, Saturn, Uranus and Neptune; 48 of their moons; and the unique system of rings and magnetic fields those planets possess. By the anniversary Voyager 1 will have traveled more than 12 billion miles and Voyager 2 more than 10 billion, with both nuclear-powered spacecraft continuing to send back data.
On the two-year anniversary of the New Horizons probe’s flyby of Pluto, mission scientists unveiled two detailed global maps of the dwarf planet and its largest moon, Charon. The combined data can now give the public insight about the mountains, volcanoes and canyons of these distant celestial neighbors.
“The complexity of the Pluto system — from its geology to its satellite system to its atmosphere — has been beyond our wildest imagination,” Alan Stern, New Horizons principal investigator from the Southwest Research Institute in Boulder, Colorado, said in a statement. The data New Horizons collected during its encounter with Pluto on July 14, 2015 continues to reveal more secrets about the dwarf planet, according to the release.