Tag: science

A star that went nova last week is now visible to the naked eye.

2:07 pm

A star that went nova last week is now visible to the naked eye.

“Nova Delphini 2013 is among the 30 brightest novae ever recorded,” says S&T editor in chief Robert Naeye. “It’s a wonderful target for backyard observers, given that it’s visible to the naked eye and relatively easy to find. But it’s also attracting the intense interest of scientists, who are using a wide assortment of telescopes and astronomical satellites to better understand these enigmatic explosions.”

Though related scientifically to certain kinds of supernovae, this is not a supernova. Nonetheless, it is rare for these events to be bright enough to be visible to the naked eye. Go outside tonight and take a look!

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Formation flying in space, without propellants.

8:52 am

Formation flying in space, without propellants.

Electromagnetic formation flight (EMFF) gets around this propellant problem by turning the satellites in a formation into electromagnets. By using a combination of magnets and reaction wheels, spacecraft in formation can move and change their attitude and even spin without propellant. Satellites can change their polarity to attract or repel one another, turn, or shift their relative positions in any manner that doesn’t require changing the center of gravity for the entire formation.

A prototype is going to be tested inside ISS in the near future.

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The engineering tests to try to save Kepler have found that the mission is essentially over.

11:16 am

The engineering tests to try to save Kepler have found that the mission is essentially over.

A headline at this New York Times article, “NASA’s Kepler Mended, but May Never Fully Recover” is wrong, as the telescope has not been “mended.” They have found they might be able to do some limited science, at the most. NASA is going to review this possibility, weighing the cost versus the benefit, and decide in the fall.

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Scientists today published a new model that suggests that Voyager 1 actually entered interstellar space in July of last year.

9:28 am

Ad astra: Scientists today published a new model that suggests that Voyager 1 actually left the solar system and entered interstellar space in July of last year.

In describing on a fine scale how magnetic field lines from the sun and magnetic field lines from interstellar space can connect to each other, they conclude Voyager 1 has been detecting the interstellar magnetic field since July 27, 2012. Their model would mean that the interstellar magnetic field direction is the same as that which originates from our sun.

Other models envision the interstellar magnetic field draped around our solar bubble and predict that the direction of the interstellar magnetic field is different from the solar magnetic field inside. By that interpretation, Voyager 1 would still be inside our solar bubble.

This new model might very well explain the conflicting data received from the spacecraft, some of which said it was out of the solar system and some of which said it was not.

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Comet ISON has come out from behind the Sun, and it looks like it will not produce a grand show for us later this year.

10:53 am

Comet ISON has come out from behind the Sun, and it looks like it will not produce a grand show for us later this year.

There will be a lot of stupid commentary criticizing astronomers for hyping this comet, all unfair. The comet had the strong possibility of being spectacular. Astronomers pointed that out, being as hopeful as everyone to see a bright and beautiful comet grace our night skies for a few months. That this is not turning out to be so is not their fault.

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A climate scientist demands neutrality from climate scientists.

11:43 am

Pigs fly! A climate scientist demands political neutrality from climate scientists.

I believe advocacy by climate scientists has damaged trust in the science. We risk our credibility, our reputation for objectivity, if we are not absolutely neutral. At the very least, it leaves us open to criticism. I find much climate scepticism is driven by a belief that environmental activism has influenced how scientists gather and interpret evidence. So I’ve found my hardline approach successful in taking the politics and therefore – pun intended – the heat out of climate science discussions.

They call me an “honest broker”, asking for “more Dr Edwards and fewer zealous advocates”. Crucially, they say this even though my scientific views are absolutely mainstream.

But it’s not just about improving trust. In this highly politicised arena, climate scientists have a moral obligation to strive for impartiality. We have a platform we must not abuse. For a start, we rarely have the necessary expertise. I absolutely disagree with Gavin that we likely know far more about the issues involved in making policy choices than [our] audience.

She might believe in human-caused global warming, but she also has the sense to recognize the vast uncertainties and political difficulties involved in this issue. The full title of her blog, All Models are Wrong is “All models are wrong, but some are useful. A grownup discussion about how to quantify uncertainties in modeling climate change and its impacts, past and future.”

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Modern Journalism: Retyping press releases

10:45 am

This post is really about the monthly NOAA update of the solar cycle, but before I do that, I must note some really bad science journalism in connection with that solar minimum.

This week NASA released a poorly written press release describing how the Sun’s magnetic field flips whenever it goes through solar maximum, the period when sunspot activity reaches its maximum. The article gave the incorrect impression that this “flip” will be some grand singular and spectacular event and when it happens the consequences to Earth could be significant. Then it buried this most important little detail to the article’s final paragraphs:
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An inspector general report has found that the 24 health co-ops formed under Obamacare are going bankrupt, even before they have opened.

9:20 am

Our government at its best: An inspector general report has found that the 24 health co-ops formed under Obamacare are going bankrupt, even before they have opened to their first customers.

And that’s not all:

Examiner Watchdog investigative reporting project focused on the co-ops began in 2012 and has since uncovered extensive evidence of financial mismanagement, conflicts of interest, failure to file required tax returns, inadequate capitalization and evasion of public disclosure requirements such as the federal Freedom of Information Act. A recent Examiner survey found, for example, that all but one of the 24 co-ops failed to file required tax returns, and several may invoke a highly questionable loophole allowing them to avoid doing so in the future. Even more troubling, two of the co-op loans were awarded to organizations headed by individuals with questionable backgrounds, the Examiner has learned, including an insider trading conviction and a history of child sexual abuse.

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New satellite data covering the period from 2000 to 2011 now shows that the atmosphere traps far less heat than predicted by every global warming climate model.

10:08 am

The uncertainty of science: New satellite data covering the period from 2000 to 2011 now shows that the atmosphere traps far less heat than predicted by every global warming climate model.

The models had predicted that the increase in CO2 — which is insufficient on its own to cause a greenhouse effect — would cause feedbacks with water (the atmosphere’s real greenhouse gas) that would increase the amount of atmospheric humidity which would thus trap heat in the atmosphere and raise the global temperature. The new data instead shows the opposite. The atmosphere is not trapping any heat. The greenhouse effect is not occurring as predicted.

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A supernova has exploded in the galaxy M74, only 30 million light years away.

3:57 pm

A supernova has exploded in the galaxy M74, only 30 million light years away.

This is one of the closest supernovae in recent years. Though it is still brightening and has reached 12th magnitude, it is not expected to brighten to naked eye visibility (about 6th magnitude). Astronomers however have spotted the progenitor star in archival Hubble images, which they have identified as a M-type red supergiant that was also particularly bright in the infrared.

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A Norwegian town, sunless for five months of the year, is building a giant array of mirrors to light up its town square.

7:20 pm

A Norwegian town, sunless for five months of the year, is building a giant array of mirrors to light up its town square.

Three mirrors with a total surface area of about 538 square feet will sit at an angle to redirect winter sun down into the town, lighting up over 2150 square feet of concentrated space in the town square. A similar idea exists in the Italian village of Viganella, which has used brushed steel to reflect light since 2006.

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Observations of Comet ISON have detected strong carbon dioxide emissions escaping from the comet.

3:05 pm

Call Al Gore! Observations of Comet ISON have detected strong carbon dioxide emissions escaping from the comet.

Images captured June 13 with Spitzer’s Infrared Array Camera indicate carbon dioxide is slowly and steadily “fizzing” away from the so-called “soda-pop comet,” along with dust, in a tail about 186,400 miles (300,000 kilometers) long. “We estimate ISON is emitting about 2.2 million pounds (1 million kilograms) of what is most likely carbon dioxide gas and about 120 million pounds (54.4 million kilograms) of dust every day,” said Carey Lisse, leader of NASA’s Comet ISON Observation Campaign and a senior research scientist at the Johns Hopkins University Applied Physics Laboratory in Laurel, Md. “Previous observations made by NASA’s Hubble Space Telescope and the Swift Gamma-Ray Burst Mission and Deep Impact spacecraft gave us only upper limits for any gas emission from ISON. Thanks to Spitzer, we now know for sure the comet’s distant activity has been powered by gas.”

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The routine lowering of past climate data to make today’s temperatures seem hotter.

9:22 pm

More climate fraud: The routine lowering of past climate data to make today’s temperatures seem hotter.

Almost all past temperatures have been adjusted downward, compared with the temperatures that were actually recorded at the time. During the Dust Bowl years of the 1930s, when many record high temperatures were recorded, the readings have been adjusted downward by, generally speaking, one to one and a half degrees. These adjustments stop abruptly in the late 1990s. The effect of the adjustments is to make the past look cooler in relation to the present.

This kind of manipulation of data, changing the historical record after the fact, is done ALL THE TIME by the climate alarmists who crank out all of the data that are reported on in the newspapers. And the adjustments are always the same: they make the past cooler, so that the present will look warmer, in order to support their power-grabbing climate hysteria agenda. Whenever you hear on the radio that a temperature reading is the “warmest ever” in a particular place, you can reasonably assume that the “warmest ever” title was conferred by falsely reporting temperature readings from past decades.

And as Hinderaker properly concludes, “This is, in my view, the biggest scandal in the history of science. I can’t think of any competitor that could even come close.”

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