Administration: Individual. The DAB-4 is a revision of one of the most popular individual achievement tests available. Its 8 subtests identify studentsâ strengths and weaknesses across important areas of school achievement. A supplemental manual shows how to probe student responses to obtain information about studentsâ thinking processes and problem-solving strategies.
In 1992, the first evidence of a planetary system other than our own was discovered, orbiting the pulsar PSR B1257+12. Three years later, 51 Pegasi b, the first extrasolar planet around a Sunlike star, was discovered.
HD 209458 b, located 150 light years away from planet Earth, in the Pegasus constellation, and is the first exoplanet to be discovered in transit of its orbiting star. It is 30% larger than Jupiter, while its orbit is 1/8th of Mercury distance from Sun. Naturally, its temperature is extremely high: about 1832Â°F.