Thursday, August 28, 2014

A Peek at the Earliest Stars

Summary: At the beginning of our universe, stars were not made of the same elements that they are today. Everything in the early universe was composed of completely hydrogen and helium. It is the very first stars that created the heavier elements like carbon, oxygen, and iron. The supernovae from these stars are what spread these elements throughout the rest of our universe. But what about these first stars that were formed before these heavy elements were common? Scientists have just maybe found some hints of these that confirm this theory. A team of astronomers has found one of these low-metallicity stars.

Using spectroscopy to look at the elements in the star with the Japanese Subaru telescope, the scientists noticed that some colors, visual representations of elements, were missing. It had very low levels of heavy metals.

With the available telescopes on earth, we cannot get much more than the barest hints of these early stars. We wait, instead, for the future and the James Webb Space Telescope to look back far into the past and help cement our current observations and find stars from even earlier times.


BBC News
Science Mag

Wednesday, August 27, 2014

Rosetta updates

Summary: Rosetta is a esa spacecraft that is currently trailing behind a 10-ton comet. The spacecraft with later touchdown and begin studying the object in detail, but important parameters still need to be found out about the comet first. In order to determine a perfect landing spot, there are currently five remaining candidates, the exact center of mass needs to be determined. This means finding out information about the size and material makeup of the celestial body. So far most of the data has confirmed what the scientists already knew and hopefully should not delay the initial touchdown in November of this year.


BBC News

Friday, May 16, 2014

Holodeck in the making

Summary: This article is for all my fellow Trekkies. Star Trek has inspired many of the technologies we enjoy now, but it seeks that the show hasn't stopped inspiring. One scientist has created his own holodeck to enjoy. Using Kinects and a head mounted camera he created a virtual reality for himself.
There are still glitches in the program but he is proud to say it feels real. I am constantly amazed by what people have been able to create with these Kinects cameras and I look forward to traveling to Middle Earth on my personal holodeck. 


Saturday, May 3, 2014

A few Updates regarding Mars and Space Travel

Martian Fashion:
Because eventually humans may colonize Mars (despite that one Doctor Who episode that clearly warned us against it), NASA has begun planning what its astronauts would need to wear. And they are trying to make it fashionable. Personally, they look like Cybermen from the '70s but I suppose as long as they keep our scientists safe, I'm okay with it.

BBC News


Curiosity:
The rover has begun drilling into the surface of Mars again. Just as a test right now,  but this does mean more data is on its way down to us.

BBC News


The Future of Space Travel:
The UK government has backed plans that would expand its space industry four-fold. This includes possible plans of a bigger space tourism industry. Already the ESA have had a major part to play in outer space exploration, but with more money being available, their part should expand and more can be accomplished. It seems to be good news for everyone.

BBC News

Friday, April 25, 2014

The Secret of the Super Bright Supernova

Summary, almost four years ago, astronomers found a supernova, PS1-10afx, that was 30 times brighter than any other of it's class. They didn't see any abnormalities that would account of this huge magnitude difference and were confused. However, this mystery has now been solved. Then Dr Robert Quimby and his team had an idea that proved fruitful. They looked to see if we were seeing this supernova through a gravitational lens. As it turns out, there was an entire galaxy directly in from of the supernova that was bending the light around it and magnifying it. PS1-10afx is just a normal Type 1A supernova. 

This is will be useful knowledge for measuring cosmic distances since objects of known brightness like Type 1A supernovae are a good constant against which we can measure other objects in the night sky.


BBC News
Science

Thursday, April 17, 2014

Infant Moon of Saturn

Summary: Hiding in the images of Saturn's outermost rings, a new moon is being formed. Or at least it looks like it might be a new moon. It's only a slight bump in the images but it does give hints of being a new moon. It's not inconceivable either. The rings are made up of many particles of ice and rock which can start to clump and form a new moon. While it has not been officially confirmed as the start of a new moon yet, the object has been nicknamed Peggy.

Astronomers hope that Cassini's final orbit in 2016 will be able to get higher quality images to verify if it is indeed the beginnings of a new moon. If so, we then just have to cross our fingers to see if it will survive it's infancy. If it stays within the rings, it will have a constant barrage or rocks that could break it apart while it is still forming. If it moves out beyond the rings, Peggy will have to dodge the larger moons.

Even if it does not end up becoming a fully fledged moon, it is still a great opportunity to observe the creation of a new celestial object.

BBC News

Wednesday, March 26, 2014

Two New Discoveries in the Solar System

There's not too much to say about these. The first one is an asteroid that has been discovered to have it's own rings. This is the first asteroid we have found that has its own ring system.

BBC News
Nature


The second one is a new dwarf planet that has been discovered outside of Pluto's orbit. There's two main theories on its formation, but it has still yet to be officially confirmed.

BBC News
Nature