Problem: Neptune:

Some of the earliest recorded observations ever made through a telescope, Galileo's drawings on 28 December 1612 and 27 January 1613, contain plotted points that match up with what is now known to be the position of Neptune. On both occasions, Galileo seems to have mistaken Neptune for a fixed star when it appeared closein conjunctionto Jupiter in the night sky; hence, he is not credited with Neptune's discovery. At his first observation in December 1612, Neptune was almost stationary in the sky because it had just turned retrograde that day. This apparent backward motion is created when Earth's orbit takes it past an outer planet. Because Neptune was only beginning its yearly retrograde cycle, the motion of the planet was far too slight to be detected with Galileo's small telescope. In July 2009, University of Melbourne physicist David Jamieson announced new evidence suggesting that Galileo was at least aware that the 'star' he had observed had moved relative to the fixed stars.

Who recently researched the original observation of Neptune?
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A: David Jamieson

Problem: In 1930, Paul Dirac proposed a model of the vacuum as an infinite sea of particles possessing negative energy, called the Dirac sea. This theory helped refine the predictions of his earlier formulated Dirac equation, and successfully predicted the existence of the positron, confirmed two years later. Werner Heisenberg's uncertainty principle formulated in 1927, predict a fundamental limit within which instantaneous position and momentum, or energy and time can be measured. This has far reaching consequences on the "emptiness" of space between particles. In the late 20th century, so-called virtual particles that arise spontaneously from empty space were confirmed.
What did Heisenberg call the particles with negative energy inside a vacuum?
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Answer: unanswerable

Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
As part of the housing and credit booms, the number of financial agreements called mortgage-backed securities (MBS) and collateralized debt obligations (CDO), which derived their value from mortgage payments and housing prices, greatly increased. Such financial innovation enabled institutions and investors around the world to invest in the U.S. housing market. As housing prices declined, major global financial institutions that had borrowed and invested heavily in subprime MBS reported significant losses.
Who could invest in the U.S. housing market through MBS and CDO?
A: institutions and investors around the world

Context and question: According to Jan Nattier, the term Mahayana "Great Vehicle" was originally even an honorary synonym for Bodhisattvayana "Bodhisattva Vehicle." The Astasahasrika Prajnaparamita Sutra, an early and important Mahayana text, contains a simple and brief definition for the term bodhisattva: "Because he has enlightenment as his aim, a bodhisattva-mahasattva is so called."
The Astasahasrika Prajnaparamita Sutra is an important text of what type?
Answer: Mahayana

Question: As of 2012[update] research continued in many fields. The university president, John Jenkins, described his hope that Notre Dame would become "one of the preeminent research institutions in the world" in his inaugural address. The university has many multi-disciplinary institutes devoted to research in varying fields, including the Medieval Institute, the Kellogg Institute for International Studies, the Kroc Institute for International Peace studies, and the Center for Social Concerns. Recent research includes work on family conflict and child development, genome mapping, the increasing trade deficit of the United States with China, studies in fluid mechanics, computational science and engineering, and marketing trends on the Internet. As of 2013, the university is home to the Notre Dame Global Adaptation Index which ranks countries annually based on how vulnerable they are to climate change and how prepared they are to adapt.
Is there an answer to this question: What does the Kroc Institute at Notre Dame focus on?

Answer: International Peace studies

The most notable fraud conviction was that of Gordon Foxley, head of defence procurement at the Ministry of Defence from 1981 to 1984. Police claimed he received at least 3.5m in total in corrupt payments, such as substantial bribes from overseas arms contractors aiming to influence the allocation of contracts.
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): What years was Foxley employed by the MoD?
Ah, so..
1981 to 1984