Science world

  Estimates by astronomers indicate that there could be more than 100 BILLION Earth-like worlds in the Milky Way that could be home to life. Think that’s a big number? According to astronomers,    there are roughly 500 billion galaxies in the known universe, which means there are around 50,000,000,000,000,000,000,000 (5×1022) habitable planets. That’s of course if there’s just ONE universe. In fact, just inside our own Milky Way Galaxy experts now believe are some 400 BILLION STARS, but this number may seem small as some astrophysicists believe that stars in our galaxy could figure the TRILLION. This means that the Milky Way alone could be home to more than 100 BILLION planets. However, since astronomers aren’t able to see our galaxy from the outside, they can’t really know for sure the number of planets the Milky Way is home to. They can only provide estimates. To do this, experts calculate our galaxy’s mass and calculate how much of that mass is composed of stars. Based...

Scientists may have discovered a large-toothed mammal off the western coast of Mexico that they say looks and sounds unlike anything else on Earth. Researchers collected environmental genetic samples of this strange creature that are still being analyzed, but the images and acoustic recordings have researchers "highly confident" it is a never-before-described species of toothed whale. "We saw something new. Something that was not expected in this area, something that doesn't match, either visually or acoustically, anything that is known to exist," announced Jay Barlow, a marine mammal researcher who worked with the Sea Shepherd Conservation Society, a non-profit, marine wildlife conservation organization, during the expedition. "It just sends chills up and down my spine when I think that we might have accomplished what most people would say was truly impossible – finding a large mammal that exists on this earth that is totally unknown to science." A sn...

 Mexican archaeologists said Friday that they had found remains of 119 more people, including women and a number of other children, during a centuries-old Aztec "tower of skulls" within the heart of the capital. The new discovery was announced after an eastern section of the Huei Tzompantli was uncovered along with the outer facade, five years after the northeastern side was found. Archaeologists believe that a lot of the skulls belonged to captured enemy warriors which the tower was intended as a warning to rivals of the Aztec empire, which was overthrown by Spanish conquistadors in 1521. Some of the remains might be of individuals who were killed in ritual sacrifices to appease the gods, consistent with experts quoted during a statement released by the National Anthropology and History Institute. "Although we cannot determine how many of these individuals were warriors, perhaps some were captives set aside for sacrificial ceremonies," archaeologist Barrera Rodrigu...

 Improving the efficiency of solar cells can make a huge difference to the amount of energy produced from the same surface area and the same amount of sunshine, and another world record has been beaten in the push for better yields. Researchers have now hit efficiency of 29.15 percent in the perovskite/silicon tandem solar cell category, which is just one of several different types of cells. There are currently a variety of different technologies in use to convert solar energy into electricity. For this type of panel, the long-term target of more than 30 percent is now tantalizingly within reach. The latest lab tests edge ahead of the maximum 28 percent efficiency that perovskite/silicon cells have managed up to this point. The layers of the tandem solar cell. (Eike Köhnen/HZB) "Tandem solar cells that pair silicon with a metal halide perovskite are a promising option for surpassing the single-cell efficiency limit," write the researchers in their published paper. "We re...

 Feasts are rare on the barren landscape of the ocean depths. So researchers couldn't believe their luck after they chanced on a feeding frenzy of deep-sea sharks chowing down on a fallen swordfish off the US coast in July 2019. But they never imagined they might also capture footage of 1 of these sharks becoming the prey for an additional deep-sea creature. With their rover hovering nearby, a late arrival took advantage of the submersible's shadow. Nobody might blame a wary fish for holding back while ravenous sharks feed, but this heavyweight had plans to show one amongst the diners into its dinner. A video posted by the US National Oceanic and Atmospheric Administration (NOAA) shows the aftermath of the ambush by a hungry wreckfish. you'll watch it for yourself within the clip below, with shark lunch being served at around 1:42. The action materialized at a depth of about 450 metres (roughly 1,480 ft) near an increase within the seafloor 130 kilometres (80 miles) off the...

 Invisible structures generated by gravitational interactions within the scheme have created a "space superhighway" network, astronomers have discovered. These channels enable the fast travel of objects through space and will be harnessed for our own space exploration purposes, moreover because of the study of comets and asteroids. By applying analyses to both observational and simulation data, a team of researchers led by Nataša Todorović of Belgrade Astronomical Observatory in Serbia observed that these superhighways encompass a series of connected arches inside these invisible structures, called space manifolds - and every planet generates its own manifolds, together creating what the researchers have called "a true celestial autobahn". This network can transport objects from Jupiter to Neptune in an exceedingly matter of decades, instead of them for much longer timescales, on the order of many thousands to voluminous years, normally found within the scheme. Find...

 Three years ago, a team of archaeologists within u.  s. proposed a rare idea: the primary human settlers within the Americas received least 100,000 years previous we thought. The evidence came from a set of mastodon bones and ancient stones dating back to around 130,000 years ago, which perceived to are hammered and scraped by early humans.  The remains were found within the suburbs of the point of entry within the 1990s, and therefore the researchers think that the nearby stones may are used as hammers and anvils to figure on the bones. But outside of that, no other traces of human action were found. Today, the Cerutti Mastodon (CM) site remains one of the foremost controversial archaeological digs within the world. For years, scientists are going back and forth over the results and whether or not they indicate the presence of humans in North America 130,000 years ago, but the first authors aren't let go.  The team has now published a follow-up paper that claims to...