An H II region or HII region is a region of interstellar atomic hydrogen that is ionized. It is typically in a molecular cloud of partially ionized gas...

The H-II (H2) rocket was a Japanese satellite launch system, which flew seven times between 1994 and 1999, with five successes. It was developed by NASDA...

launches made by JAXA using H-II, H-IIA, H-IIB and H3 rockets. 1 2 3 4 5 6 1994 1998 2002 2006 2010 2014 2018 2022   H-II   H-IIA   H-IIB   H3 1 2 3 4 5 6 1994...

the first H-IIA launched after this privatization. The H-IIA is a derivative of the earlier H-II rocket, substantially redesigned to improve reliability...

The Horten H.II Habicht (Hawk) was a German flying wing glider built in Germany in 1935. Four, including one flown mostly as a motorglider, were built...

The Horten H.XVIII (18) was a proposed German World War II intercontinental bomber, designed by the Horten brothers. The unbuilt H.XVIII represented,...

The H-II Transfer Vehicle (HTV), also called Kounotori (こうのとり, Kōnotori, "oriental stork" or "white stork"), is an expendable Japanese automated cargo...

Career Academy in Chicago Edward H. White Middle School in White's hometown of San Antonio, Texas Edward H. White II Elementary School in El Lago, Texas...

surrounding the massive stars is known as an H II region while the shells of neutral hydrogen surrounding the H II region are known as photodissociation region...

(H is the chemical symbol for hydrogen, and "I" is the Roman numeral. It is customary in astronomy to use the Roman numeral I for neutral atoms, II for...