Archive for the ‘space’ category: Page 868
Mar 29, 2018
That Chinese Space Station Hurtling Toward Earth Could Hit One Of These U.S. Cities
Posted by Genevieve Klien in categories: education, space
Well, here’s some terrifying news: There’s a Chinese space station out in the galaxy that is hurtling towards Earth, and it is expected to hit the planet on or around Apr. 1, 2018. There’s no stopping it, and scientists have stated that they really don’t have much control over it either. On top of that, it could either cause a lot of damage or it could do almost nothing. In other words, it’s a very unclear situation! The question on everyone’s mind is an important one: where is the Chinese space station going to crash? Do you need to be worried about being destroyed by a flying space station on Easter Sunday?
Here’s the deal: in 2016, China lost control of their first space station, called Tiangong-1, which is about the size of a school bus (so, yes, it’s very large). According to Vox, China had once been planning on trying to give the space station a controlled descent to Earth so that we didn’t all have to worry about having large pieces of it fall on or around our homes. That’s when things got more out of control: the space station malfunctioned, for reasons we still don’t really know. Due to “orbital decay” (which is defined as “the process of prolonged reduction in the altitude of a satellite’s orbit.” So, essentially, it’s when objects enter the Earth’s atmosphere and burn up), the space station has been heading towards Earth since it went off on its own.
The time has now come for that space station to hit Earth. It is said to be about 124 miles above the Earth, and is expected to crash through the atmosphere on or around Apr. 1, according to the European Space Agency. The good news is that a lot of it will burn up in the atmosphere. The bad news is that there will still be some heavy pieces that get through and hit the ground. Also bad news: we can’t control any of it. Oh, and no one knows where it will land.
Mar 29, 2018
Tiangong-1: How to follow the space lab’s decaying orbit and reentry
Posted by Alberto Lao in category: space
With the space station likely to fall on April Fool’s Day, it’s important to know whom to follow for reliable information.
Mar 29, 2018
Earth Likely Had Water Before Moon-Forming Smashup
Posted by Alberto Lao in category: space
New research suggests that the moon-forming impact of another body and Earth, early in the solar system’s history, fully scrambled the two objects, and that water was already present before the smash-up.
Mar 28, 2018
33 Angry Physicists Came Together to Shut Down One Theory About the Universe
Posted by Genevieve Klien in categories: physics, space
Scientists are no strangers to healthy debate. You need criticism to strengthen your ideas, and when debate is done right, both parties leave knowing more than they did when they started. But there are some things that will just make a scientist mad. One of those things? Saying their scientific theory isn’t scientific. That’s what a trio of physicists did in a 2017 article they published in Scientific American, which stated that the idea of an expanding universe simply isn’t testable. The response from other physicists? Oh, it’s on.
Mar 28, 2018
Astronomers detect a hot, metallic Earth-sized planet outside our solar system
Posted by Genevieve Klien in category: space
Situated at about 340 million light-years away from Earth, it finds itself very close to its host star (around a hundredth of the distance between the Earth and the Sun), which itself is a medium-sized active K dwarf in the Virgo Constellation.
K2-229b orbits this star every fourteen hours, according to the study published in the journal Nature Astronomy. “Interestingly K2-229b is also the innermost planet in a system of at least three planets, though all three orbit much closer to their star than Mercury. More discoveries like this will help us shed light on the formation of these unusual planets, as well as Mercury itself,” Armstrong added.
Using the K2 telescope, Armstrong and colleagues employed the Doppler spectroscopy technique — also known as the ‘wobble method’ to discover and characterise this faraway planet.
Continue reading “Astronomers detect a hot, metallic Earth-sized planet outside our solar system” »
Mar 27, 2018
A space junk disaster is a real possibility — here’s how the US government is preventing a chain of collisions that’d threaten human access to space
Posted by Genevieve Klien in categories: government, space
Tiangong-1, China’s modular space station, is crashing to Earth. With so much junk in space, the chance of a “Kessler Syndrome” catastrophe may be increasing.
Mar 27, 2018
The James Webb Space Telescope will be delayed for at least a year
Posted by Genevieve Klien in categories: government, space
Today, NASA held a press conference on the status of the James Webb Space Telescope, the organization’s successor to Hubble, and the news was grim. The observatory was supposed to launch between March and June of 2019. JWST will miss that window; while a specific launch time frame hasn’t been established, NASA is currently targeting May 2020.
While the telescope’s individual components meet their requirements, contractor Northrop Grumman needs more time to test them, integrate them together and do environmental testing. In order to monitor the telescope’s schedule, NASA is creating a Independent Review Board (IRB) to monitor this testing and NASA will take its recommendations into account when determining a specific launch window. That will occur sometime this summer.
Many suspected this announcement was coming after a report from the US Government Accountability Office earlier this month. The GAO found that ongoing technical issues with the telescope meant that launch delays were likely, and that the project was at risk of breaching the $8 billion cap set by Congress, which would mean it would need to be reauthorized. The telescope has already encountered delays, and it’s safe to say that more will follow. It’s an incredibly complex, detailed and delicate device, after all.
Continue reading “The James Webb Space Telescope will be delayed for at least a year” »
Mar 27, 2018
Here Is FEMA’s Plan If the Falling Chinese Satellite Takes Aim at a US City
Posted by Genevieve Klien in categories: climatology, space
China’s defunct space station Tiangong-1 will soon plummet toward Earth, likely this weekend. You will almost certainly not be harmed in any way by it—the odds of it striking an individual person are worse than winning the lottery or being struck by lightning. You should not worry about it.
But we’re humans. We’re all probably wondering, what happens if it becomes clear that pieces of the debris will strike a populated area? This is a long discussion that far predates Tiangong-1.
China launched the house-sized Tiangong-1 space station in 2011. It was a prototype that could only hold a three-person crew, and the plan was for it to fall back to Earth in a controlled reentry, meaning scientists would get to pick where it lands. In 2016, China informed the UN that the satellite was no longer functioning, but denied that it lost control of the ship in some more recent reports. Tiangong-1’s orbit is decaying as the craft slowly succumbs to Earth’s gravity.
Continue reading “Here Is FEMA’s Plan If the Falling Chinese Satellite Takes Aim at a US City” »