Ongoing. "Holography: Artists and Inventors.""MIT Hall of Hacks." "Light Sculptures by BillParker." "Math in 3D: Geometric Sculptures byMorton G. Bradley, Jr." "MathSpace."

Museum of Fine Arts. 465 HuntingtonAve., Boston. 267-9300.

April Vacation Week at the MFA. With the theme"Celebrate Nature and Art," activities in art,storytelling and dance will be offered throughApril 21. $8 for adults and $3.50 for children.Call 369-3300 for more information.

From Wed., April 19 through June 30, 1995."Object as Insight: Japanese Buddhist Art andRitual," juxtaposing Japanese Buddhist paintingand sculpture with temple adornments, ritualobjects and the possessions of monks.

Through Oct. 22. "Degrees of Abstraction: FromMorris Louis to Mapplethorpe." The selection ofobjects and the installation of this exhibitionwill play "pure" abstraction againstrepresentation.

Through June 4. "Dennis Miller Bunker: AmericanImpressionist." Featuring 50 of the artist'sfinest works, this exhibition will be the firstcomprehensive exhibition will be the firstcomprehensive exhibition accompanied by anextensive catalogue.

Through May 7. "Emil Nolde: The Painter'sPrints." Nolde, known for his vibrantly coloredoil paintings and watercolors, will be the focusof the first major U.S. exhibition of one of thegreatest modern German artists.

Through Aug. 20. "John Singer Sargent: Studiesfro the Murals at the MFA and the Boston PublicLibrary." Murals painted by American artist JohnSinger Sargent are celebrated in conjunction withthe shared anniversaries of the two institutions:the 125th anniversary of the founding of theMuseum and the 100th anniversary of the Library'sbuilding in Copley Square.

Through May. "Monet Installation." The Museum'sentire collection of paintings by Claude Monetwill be installed in the impressionist galleriesfor the first time in nearly 20 years. Noinstitution outside of France holds a largercollection of paintings by Monet than the MFA. Theinstallation will be complimented by a selectionof works by other impressionists such as Renoir,Degas, Manet and Gauguin.

Through June 25. "The Renaissance Print: Franceand Italy." This exhibition presents a provocativedialogue between French and Italian graphic worksfromt he 16th century.

Through July 25, 1995. "The Taste for Luxury:English Furniture, Silver and Ceramics,1690-1790," exploring the influence of stylisticdevelopments in the decorative arts through the18th century.

Through Nov. 17, 1995. "South of the Border:Latin American Tapestries and Decorative Arts,"displaying fourteen tapestries and textiles,sculpture, silver and furniture used for bothdomestic and religious purposes.

Museum of Science. Science Park, Boston.723-2500. Exhibits include "The Observatory,"featuring infrared and ultrasonic sounds andimages of unseen events; and "The Test tube," anexhibit of some of the museum's work-in-progressfor upcoming exhibits. Laser show "Pink Floyd:Dark Side of the Moon," "The Police,""Lollapalaser," and "Dream On: The Music ofAerosmith." Omni Theater. Planetarium.

Nostalgia Factory. Through April 30. 336Newbury St., Boston. 236-8754. "Kids in a Can: TheCampbell's Soup Story in Ads," featuring originalCampbell's soups ads from the late 19th centurythrough the 1970's. Admission is fee.

Wheelock College. Towne Art Gallery, 180The Riverway, Boston. 734-5200. "Streets are forNobody," photographs and interviews of homelesswomen in Boston and other communities by MelissaShook.